diff --git a/.github/.keepalive b/.github/.keepalive
new file mode 100644
index 0000000..bb2861f
--- /dev/null
+++ b/.github/.keepalive
@@ -0,0 +1 @@
+2023-10-01T00:50:37.158Z
diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 06a9a75..ab56cca 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -41,11 +41,13 @@ jobs:
 
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
diff --git a/.github/workflows/cancel.yml b/.github/workflows/cancel.yml
index a00dbe5..3acd3a9 100644
--- a/.github/workflows/cancel.yml
+++ b/.github/workflows/cancel.yml
@@ -44,7 +44,8 @@ jobs:
 
       # Cancel existing workflow runs:
       - name: 'Cancel existing workflow runs'
-        uses: styfle/cancel-workflow-action@0.11.0
+        # Pin action to full length commit SHA corresponding to v0.11.0
+        uses: styfle/cancel-workflow-action@b173b6ec0100793626c2d9e6b90435061f4fc3e5
         with:
           workflow_id: >-
             benchmark.yml,
diff --git a/.github/workflows/close_pull_requests.yml b/.github/workflows/close_pull_requests.yml
index 7a4f15a..aea7b44 100644
--- a/.github/workflows/close_pull_requests.yml
+++ b/.github/workflows/close_pull_requests.yml
@@ -26,19 +26,29 @@ on:
 
 # Workflow jobs:
 jobs:
+
+  # Define job to close all pull requests:
   run:
+
+    # Define the type of virtual host machine on which to run the job:
     runs-on: ubuntu-latest
+
+    # Define the sequence of job steps...
     steps:
-    - uses: superbrothers/close-pull-request@v3
-      with:
-        comment: |
-          Thank you for submitting a pull request. :raised_hands:
-          
-          We greatly appreciate your willingness to submit a contribution. However, we are not accepting pull requests against this repository, as all development happens on the [main project repository](https://github.com/stdlib-js/stdlib).
-          
-          We kindly request that you submit this pull request against the [respective directory](https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/fs/exists) of the main repository where we’ll review and provide feedback. If this is your first stdlib contribution, be sure to read the [contributing guide](https://github.com/stdlib-js/stdlib/blob/develop/CONTRIBUTING.md) which provides guidelines and instructions for submitting contributions.
-          
-          Thank you again, and we look forward to receiving your contribution! :smiley:
-          
-          Best,
-          The stdlib team
\ No newline at end of file
+
+      # Close pull request
+      - name: 'Close pull request'
+        # Pin action to full length commit SHA corresponding to v3.1.2
+        uses: superbrothers/close-pull-request@9c18513d320d7b2c7185fb93396d0c664d5d8448
+        with:
+          comment: |
+            Thank you for submitting a pull request. :raised_hands:
+            
+            We greatly appreciate your willingness to submit a contribution. However, we are not accepting pull requests against this repository, as all development happens on the [main project repository](https://github.com/stdlib-js/stdlib).
+            
+            We kindly request that you submit this pull request against the [respective directory](https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/fs/exists) of the main repository where we’ll review and provide feedback. If this is your first stdlib contribution, be sure to read the [contributing guide](https://github.com/stdlib-js/stdlib/blob/develop/CONTRIBUTING.md) which provides guidelines and instructions for submitting contributions.
+            
+            Thank you again, and we look forward to receiving your contribution! :smiley:
+            
+            Best,
+            The stdlib team
\ No newline at end of file
diff --git a/.github/workflows/examples.yml b/.github/workflows/examples.yml
index 7902a7d..c1c45e7 100644
--- a/.github/workflows/examples.yml
+++ b/.github/workflows/examples.yml
@@ -39,13 +39,15 @@ jobs:
     # Define the sequence of job steps...
     steps:
 
-      # Checkout the repository:
-      - name: 'Checkout the repository'
-        uses: actions/checkout@v3
+      # Checkout repository:
+      - name: 'Checkout repository'
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
diff --git a/.github/workflows/npm_downloads.yml b/.github/workflows/npm_downloads.yml
index 82b2b3b..b031f39 100644
--- a/.github/workflows/npm_downloads.yml
+++ b/.github/workflows/npm_downloads.yml
@@ -45,12 +45,14 @@ jobs:
     steps:
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
         timeout-minutes: 10
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -84,7 +86,8 @@ jobs:
 
       # Upload the download data:
       - name: 'Upload data'
-        uses: actions/upload-artifact@v3
+        # Pin action to full length commit SHA corresponding to v3.1.3
+        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32
         with:
           # Define a name for the uploaded artifact (ensuring a unique name for each job):
           name: npm_downloads
@@ -99,7 +102,8 @@ jobs:
 
       # Send data to events server:
       - name: 'Post data'
-        uses: distributhor/workflow-webhook@v3
+        # Pin action to full length commit SHA corresponding to v3.0.3:
+        uses: distributhor/workflow-webhook@48a40b380ce4593b6a6676528cd005986ae56629
         env:
           webhook_url: ${{ secrets.STDLIB_NPM_DOWNLOADS_URL }}
           webhook_secret: ${{ secrets.STDLIB_WEBHOOK_SECRET }}
diff --git a/.github/workflows/productionize.yml b/.github/workflows/productionize.yml
index b61e587..2eecd49 100644
--- a/.github/workflows/productionize.yml
+++ b/.github/workflows/productionize.yml
@@ -60,13 +60,15 @@ jobs:
     steps:
       # Checkout main branch of repository:
       - name: 'Checkout main branch'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
         with:
           ref: main
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -131,7 +133,8 @@ jobs:
       # Checkout the repository:
       - name: 'Checkout repository'
         if: ${{ github.event.inputs.require-passing-tests == 'true' }}
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
         with:
           # Use the `production` branch:
           ref: production
@@ -139,7 +142,8 @@ jobs:
       # Install Node.js:
       - name: 'Install Node.js'
         if: ${{ github.event.inputs.require-passing-tests == 'true' }}
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -183,7 +187,8 @@ jobs:
     steps:
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       # Configure git:
       - name: 'Configure git'
@@ -250,7 +255,8 @@ jobs:
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -333,7 +339,8 @@ jobs:
 
       # Send status to Slack channel if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
@@ -356,7 +363,8 @@ jobs:
     steps:
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       # Configure git:
       - name: 'Configure git'
@@ -415,7 +423,8 @@ jobs:
 
       # Install Node.js
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -503,7 +512,8 @@ jobs:
 
       # Send status to Slack channel if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
@@ -526,7 +536,8 @@ jobs:
     steps:
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       # Configure git:
       - name: 'Configure git'
@@ -593,7 +604,8 @@ jobs:
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -679,7 +691,8 @@ jobs:
 
       # Send status to Slack channel if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
@@ -702,7 +715,8 @@ jobs:
     steps:
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       # Configure git:
       - name: 'Configure git'
@@ -768,7 +782,8 @@ jobs:
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -871,7 +886,8 @@ jobs:
 
       # Send status to Slack channel if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
@@ -895,7 +911,8 @@ jobs:
 
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
         with:
           fetch-depth: 2
 
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 474004b..b17435b 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -61,11 +61,13 @@ jobs:
 
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -197,7 +199,8 @@ jobs:
 
       # Publish package to npm:
       - name: 'Publish package to npm'
-        uses: JS-DevTools/npm-publish@v2
+        # Pin action to full length commit SHA corresponding to v2.2.2
+        uses: JS-DevTools/npm-publish@fe72237be0920f7a0cafd6a966c9b929c9466e9b
         with:
           token: ${{ secrets.NPM_TOKEN }}
           access: public
@@ -209,7 +212,8 @@ jobs:
 
       # Send status to Slack channel if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
@@ -230,7 +234,8 @@ jobs:
 
       # Cancel any running or queued workflow runs:
       - name: 'Cancel running or queued workflow runs'
-        uses: styfle/cancel-workflow-action@0.11.0
+        # Pin action to full length commit SHA corresponding to v0.11.0
+        uses: styfle/cancel-workflow-action@b173b6ec0100793626c2d9e6b90435061f4fc3e5
         with:
           workflow_id: >-
             benchmark.yml,
diff --git a/.github/workflows/publish_cli.yml b/.github/workflows/publish_cli.yml
index 02da0eb..8468969 100644
--- a/.github/workflows/publish_cli.yml
+++ b/.github/workflows/publish_cli.yml
@@ -61,13 +61,15 @@ jobs:
 
       # Checkout cli branch:
       - name: 'Checkout cli branch'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
         with:
           ref: cli
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -120,7 +122,8 @@ jobs:
 
       # Publish package to npm:
       - name: 'Publish package to npm'
-        uses: JS-DevTools/npm-publish@v2
+        # Pin action to full length commit SHA corresponding to v2.2.2
+        uses: JS-DevTools/npm-publish@fe72237be0920f7a0cafd6a966c9b929c9466e9b
         with:
           token: ${{ secrets.NPM_TOKEN }}
           access: public
@@ -132,7 +135,8 @@ jobs:
 
       # Send status to Slack channel if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
@@ -153,7 +157,8 @@ jobs:
 
       # Cancel any running or queued workflow runs:
       - name: 'Cancel running or queued workflow runs'
-        uses: styfle/cancel-workflow-action@0.11.0
+        # Pin action to full length commit SHA corresponding to v0.11.0
+        uses: styfle/cancel-workflow-action@b173b6ec0100793626c2d9e6b90435061f4fc3e5
         with:
           workflow_id: >-
             benchmark.yml,
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f8364ba..7048fcd 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -58,11 +58,13 @@ jobs:
 
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -89,7 +91,8 @@ jobs:
 
       # Send status to Slack channel if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
diff --git a/.github/workflows/test_bundles.yml b/.github/workflows/test_bundles.yml
index 172cb2d..0d26143 100644
--- a/.github/workflows/test_bundles.yml
+++ b/.github/workflows/test_bundles.yml
@@ -49,13 +49,15 @@ jobs:
     steps:
       # Checkout UMD branch of the repository:
       - name: 'Checkout branch with UMD build'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
         with:
           ref: umd
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 17
 
@@ -88,7 +90,8 @@ jobs:
 
       # Send notification to Slack channel if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
@@ -113,13 +116,15 @@ jobs:
 
       # Checkout ES modules branch of the repository:
       - name: 'Checkout branch with ESM build'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
         with:
           ref: esm
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 17
 
@@ -130,7 +135,8 @@ jobs:
 
       # Send notification to Slack channel if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
@@ -155,13 +161,15 @@ jobs:
 
       # Checkout Deno branch of the repository:
       - name: 'Checkout branch with Deno build'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
         with:
           ref: deno
 
       # Install Deno:
       - name: 'Install Deno'
-        uses: denoland/setup-deno@v1
+        # Pin action to full length commit SHA corresponding to v1.1.2
+        uses: denoland/setup-deno@61fe2df320078202e33d7d5ad347e7dcfa0e8f31
         with:
           deno-version: vx.x.x
 
@@ -172,7 +180,8 @@ jobs:
 
       # Send notification to Slack channel if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
diff --git a/.github/workflows/test_coverage.yml b/.github/workflows/test_coverage.yml
index a73c515..5b2b1ea 100644
--- a/.github/workflows/test_coverage.yml
+++ b/.github/workflows/test_coverage.yml
@@ -46,11 +46,13 @@ jobs:
 
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -77,7 +79,8 @@ jobs:
       # Upload coverage report to Codecov:
       - name: 'Upload coverage to Codecov'
         id: upload
-        uses: codecov/codecov-action@v3
+        # Pin action to full length commit SHA corresponding to v3.1.4
+        uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d
         with:
           directory: reports/coverage
           flags: unittests
@@ -106,7 +109,8 @@ jobs:
 
       # Send Slack notification if job fails:
       - name: 'Send status to Slack channel in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
@@ -115,7 +119,8 @@ jobs:
 
       # Send data to events server:
       - name: 'Post data'
-        uses: distributhor/workflow-webhook@v3
+        # Pin action to full length commit SHA corresponding to v3.0.3:
+        uses: distributhor/workflow-webhook@48a40b380ce4593b6a6676528cd005986ae56629
         env:
           webhook_url: ${{ secrets.STDLIB_COVERAGE_URL }}
           webhook_secret: ${{ secrets.STDLIB_WEBHOOK_SECRET }}
diff --git a/.github/workflows/test_install.yml b/.github/workflows/test_install.yml
index fe0fa25..f0e9925 100644
--- a/.github/workflows/test_install.yml
+++ b/.github/workflows/test_install.yml
@@ -58,11 +58,13 @@ jobs:
 
       # Checkout the repository:
       - name: 'Checkout repository'
-        uses: actions/checkout@v3
+        # Pin action to full length commit SHA corresponding to v4.1.0
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608
 
       # Install Node.js:
       - name: 'Install Node.js'
-        uses: actions/setup-node@v3
+        # Pin action to full length commit SHA corresponding to v3.8.1
+        uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d
         with:
           node-version: 16
         timeout-minutes: 5
@@ -75,7 +77,8 @@ jobs:
 
       # Send Slack notification if job fails:
       - name: 'Send notification to Slack in case of failure'
-        uses: act10ns/slack@v2
+        # Pin action to full length commit SHA corresponding to v2.0.0
+        uses: act10ns/slack@ed1309ab9862e57e9e583e51c7889486b9a00b0f
         with:
           status: ${{ job.status }}
           steps: ${{ toJson(steps) }}
diff --git a/README.md b/README.md
index 3327e32..1a539ca 100644
--- a/README.md
+++ b/README.md
@@ -318,8 +318,8 @@ Copyright © 2016-2023. The Stdlib [Authors][stdlib-authors].
 [npm-image]: http://img.shields.io/npm/v/@stdlib/fs-exists.svg
 [npm-url]: https://npmjs.org/package/@stdlib/fs-exists
 
-[test-image]: https://github.com/stdlib-js/fs-exists/actions/workflows/test.yml/badge.svg?branch=v0.1.0
-[test-url]: https://github.com/stdlib-js/fs-exists/actions/workflows/test.yml?query=branch:v0.1.0
+[test-image]: https://github.com/stdlib-js/fs-exists/actions/workflows/test.yml/badge.svg?branch=main
+[test-url]: https://github.com/stdlib-js/fs-exists/actions/workflows/test.yml?query=branch:main
 
 [coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/fs-exists/main.svg
 [coverage-url]: https://codecov.io/github/stdlib-js/fs-exists?branch=main
diff --git a/package.json b/package.json
index 53f7c11..f7f635f 100644
--- a/package.json
+++ b/package.json
@@ -46,11 +46,11 @@
     "@stdlib/utils-define-nonenumerable-read-only-property": "^0.1.0"
   },
   "devDependencies": {
-    "@stdlib/assert-is-boolean": "^0.0.8",
-    "@stdlib/assert-is-browser": "^0.0.8",
-    "@stdlib/assert-is-windows": "^0.0.7",
-    "@stdlib/bench": "^0.0.12",
-    "@stdlib/process-exec-path": "^0.0.7",
+    "@stdlib/assert-is-boolean": "^0.1.0",
+    "@stdlib/assert-is-browser": "^0.1.0",
+    "@stdlib/assert-is-windows": "^0.1.0",
+    "@stdlib/bench": "^0.1.0",
+    "@stdlib/process-exec-path": "^0.1.0",
     "proxyquire": "^2.0.0",
     "tape": "git+https://github.com/kgryte/tape.git#fix/globby",
     "istanbul": "^0.4.1",
diff --git a/test/dist/test.js b/test/dist/test.js
new file mode 100644
index 0000000..af6ce88
--- /dev/null
+++ b/test/dist/test.js
@@ -0,0 +1,38 @@
+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2018 The Stdlib Authors.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*    http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+'use strict';
+
+// MODULES //
+
+var tape = require( 'tape' );
+var exists = require( './../../dist' );
+
+
+// TESTS //
+
+tape( 'main export is a function', function test( t ) {
+	t.ok( true, __filename );
+	t.strictEqual( typeof exists, 'function', 'export is a function' );
+	t.end();
+});
+
+tape( 'export includes a function to test for existence synchronously', function test( t ) {
+	t.equal( typeof exists.sync, 'function', 'export is a function' );
+	t.end();
+});