diff --git a/.github/workflows/build-spec.yml b/.github/workflows/build-spec.yml
index b089e2651..6a2ae5afe 100644
--- a/.github/workflows/build-spec.yml
+++ b/.github/workflows/build-spec.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4.1.7
 
     - name: Build code snippets
       run: |
@@ -31,7 +31,7 @@ jobs:
     runs-on: windows-2022
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4.1.7
     
     - run: |
         PowerShell -ExecutionPolicy Bypass -Command ./generate_figures.ps1
@@ -49,7 +49,7 @@ jobs:
     steps:
 
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4.1.7
       with:
         submodules: recursive