diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index bf10c02..2db2628 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,12 +20,12 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-20.04, windows-2022, macos-11 ]
-        node-version: [ 14.x, 16.x, 17.x ]
+        node-version: [ 14.x, 16.x, 17.x, 18.x ]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v2
+      uses: actions/setup-node@v3
       with:
         node-version: ${{ matrix.node-version }}
     - run: npm install
@@ -33,7 +33,7 @@ jobs:
     
     - name: Upload Artifact
       if: ${{ matrix.os == 'ubuntu-20.04' && matrix.node-version == '16.x' }}
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v3
       with:
         name: qtest-mstest-parser
         path: |
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index fc1a2b2..c780462 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -22,12 +22,12 @@ jobs:
 
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         fetch-depth: 2 
 
     - name: Set Up Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
+      uses: actions/setup-node@v3
       with:
         node-version: ${{ matrix.node-version }}
 
@@ -40,7 +40,7 @@ jobs:
       run: nyc --reporter=lcov npm test
       
     - name: Upload Coverage To Codecov
-      uses: codecov/codecov-action@v1
+      uses: codecov/codecov-action@v3
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
         
\ No newline at end of file
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ec7d043..fe07c77 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -19,9 +19,9 @@ jobs:
         node-version: [ 16.x ]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v2
+      uses: actions/setup-node@v3
       with:
         node-version: ${{ matrix.node-version }}
     - run: npm install
diff --git a/tests/test.js b/tests/test.js
index f4d046d..17923a3 100644
--- a/tests/test.js
+++ b/tests/test.js
@@ -4,7 +4,7 @@ const parser = require('../parser.js');
 (async () => {
     console.log('TEST 1 - Parse MSTest (TestResults-DifferentTestOutcomes.trx) results file with different test outcomes (using path with filename).');
     let result = await parser.parse('./tests/sample-mstest-results/TestResults-DifferentTestOutcomes.trx', null);
-    var resultString = JSON.stringify(result, null, 4);
+    let resultString = JSON.stringify(result, null, 4);
     //console.log(resultString);
     //All records exist comparison.
     assert(resultString.includes('"order": 1'));
@@ -19,7 +19,7 @@ const parser = require('../parser.js');
 (async () => {
     console.log('TEST 2 - Parse MSTest (TestResults-AllPassedOutcomes.trx) results file with all passed test outcomes (using path with filename).');
     let result = await parser.parse('./tests/sample-mstest-results/TestResults-AllPassedOutcomes.trx', null);
-    var resultString = JSON.stringify(result, null, 4);
+    let resultString = JSON.stringify(result, null, 4);
     //console.log(resultString);
     //All records exist comparison.
     assert(resultString.includes('"order": 1'));
@@ -35,7 +35,7 @@ const parser = require('../parser.js');
 (async () => {
     console.log('TEST 3 - Parse MSTest (TestResults-AllFailedOutcomes.trx) results file with all failed test outcomes (using path with filename).');
     let result = await parser.parse('./tests/sample-mstest-results/TestResults-AllFailedOutcomes.trx', null);
-    var resultString = JSON.stringify(result, null, 4);
+    let resultString = JSON.stringify(result, null, 4);
     //console.log(resultString);
     //All records exist comparison.
     assert(resultString.includes('"order": 1'));
@@ -51,7 +51,7 @@ const parser = require('../parser.js');
 (async () => {
     console.log('TEST 4 - Parse MSTest (TestResults-WithAttachments.trx) results file with attachment details (using path with filename).');
     let result = await parser.parse('./tests/sample-mstest-results/TestResults-WithAttachments.trx', null);
-    var resultString = JSON.stringify(result, null, 4);
+    let resultString = JSON.stringify(result, null, 4);
     //console.log(resultString);
     //All records exist comparison.
     assert(resultString.includes('"order": 1'));
@@ -65,7 +65,7 @@ const parser = require('../parser.js');
 (async () => {
     console.log('TEST 5 - Parse all MSTest (.trx) result files (using path to result files - path ending /).');
     let result = await parser.parse('./tests/sample-mstest-results/', null);
-    var resultString = JSON.stringify(result, null, 4);
+    let resultString = JSON.stringify(result, null, 4);
     //console.log(resultString);
     //Record start comparison.
     assert(resultString.includes('"order": 1'));
@@ -78,7 +78,7 @@ const parser = require('../parser.js');
 (async () => {
     console.log('TEST 6 - Parse all MSTest (.trx) result files (using path to result files - path not ending /).');
     let result = await parser.parse('./tests/sample-mstest-results', null);
-    var resultString = JSON.stringify(result, null, 4);
+    let resultString = JSON.stringify(result, null, 4);
     //console.log(resultString);
     //Record start comparison.
     assert(resultString.includes('"order": 1'));
@@ -91,7 +91,7 @@ const parser = require('../parser.js');
 (async () => {
     console.log('TEST 7 - Parse all MSTest (.trx) result files (using matching pattern - *.trx /).');
     let result = await parser.parse('./tests/sample-mstest-results/*.trx', null);
-    var resultString = JSON.stringify(result, null, 4);
+    let resultString = JSON.stringify(result, null, 4);
     //console.log(resultString);
     //Record start comparison.
     assert(resultString.includes('"order": 1'));
@@ -104,7 +104,7 @@ const parser = require('../parser.js');
 (async () => {
     console.log('TEST 8 - Parse all MSTest (.trx) result files (using matching pattern - **/*.trx /).');
     let result = await parser.parse('./tests/sample-mstest-results/**/*.trx', null);
-    var resultString = JSON.stringify(result, null, 4);
+    let resultString = JSON.stringify(result, null, 4);
     //console.log(resultString);
     //Record start comparison.
     assert(resultString.includes('"order": 1'));
@@ -152,7 +152,7 @@ const parser = require('../parser.js');
 
 (async () => {
     console.log('TEST 11 - Delay test.');
-    var waitTime = Math.floor(Math.random() * (4000 - 1000) + 1000);
+    let waitTime = Math.floor(Math.random() * (4000 - 1000) + 1000);
     let timeNow = new Date().getTime();
     parser.delay(waitTime);
     let timeAfter = new Date().getTime();
@@ -170,9 +170,9 @@ const parser = require('../parser.js');
 
 (async () => {
     console.log('TEST 13 - Parse MSTest (TestResults-DifferentTestOutcomes.trx) results file with different test outcomes (using path with filename) & delay option.');
-    var waitTime = Math.floor(Math.random() * (4000 - 1000) + 1000);
+    let waitTime = Math.floor(Math.random() * (4000 - 1000) + 1000);
     let result = await parser.parse('./tests/sample-mstest-results/TestResults-DifferentTestOutcomes.trx', { delay: waitTime });
-    var resultString = JSON.stringify(result, null, 4);
+    let resultString = JSON.stringify(result, null, 4);
     //console.log(resultString);
     //All records exist comparison.
     assert(resultString.includes('"order": 1'));
@@ -188,7 +188,7 @@ const parser = require('../parser.js');
     console.log('TEST 14 - Parse all MSTest (.trx) result files (using path to result files - path ending /) & delay option.');
     let waitTime = Math.floor(Math.random() * (4000 - 1000) + 1000);
     let result = await parser.parse('./tests/sample-mstest-results/', { delay: waitTime });
-    var resultString = JSON.stringify(result, null, 4);
+    let resultString = JSON.stringify(result, null, 4);
     //console.log(resultString);
     //Record start comparison.
     assert(resultString.includes('"order": 1'));