diff --git a/.github/workflows/master.yml b/.github/workflows/master.yml
index 1a696f6f0..c1387b9d8 100644
--- a/.github/workflows/master.yml
+++ b/.github/workflows/master.yml
@@ -44,7 +44,7 @@ jobs:
     - run: npm run package:browser
       working-directory: accessibility-checker-extension
     - name: Upload packed extension
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: accessibility-checker-extension for Chrome
         path: accessibility-checker-extension/package/accessibility-checker-extension.zip
@@ -53,7 +53,7 @@ jobs:
     - run: npm run package:browser
       working-directory: accessibility-checker-extension
     - name: Upload packed extension
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: accessibility-checker-extension for Firefox
         path: accessibility-checker-extension/package/accessibility-checker-extension.zip
@@ -92,7 +92,7 @@ jobs:
     - run: npm test
       working-directory: accessibility-checker/test-act-w3
     - name: Upload packed extension
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: ACT Text Results
         path: accessibility-checker/test-act-w3/act-report-v2.txt
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 3f6b552e4..02627bfe4 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -173,7 +173,7 @@ jobs:
     - run: npm run package:browser
       working-directory: accessibility-checker-extension
     - name: Upload packed extension
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: accessibility-checker-extension for Chrome
         path: accessibility-checker-extension/package/accessibility-checker-extension.zip
@@ -195,7 +195,7 @@ jobs:
     - run: npm run package:browser
       working-directory: accessibility-checker-extension
     - name: Upload packed extension
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: accessibility-checker-extension for Firefox
         path: accessibility-checker-extension/package/accessibility-checker-extension.zip
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b22b0cad2..5edd9befb 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -42,7 +42,7 @@ jobs:
     - run: npx mocha ./test/mocha/help/help.test.js
       working-directory: accessibility-checker-engine
     - name: Upload rule listing
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: Rule listing
         path: accessibility-checker-engine/dist/help/rules.html
@@ -84,7 +84,7 @@ jobs:
     - run: npm test
       working-directory: accessibility-checker/test-act-w3
     - name: Upload packed extension
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: ACT Text Results
         path: accessibility-checker/test-act-w3/act-report-v2.txt
@@ -562,7 +562,7 @@ jobs:
       run: npm test
       working-directory: accessibility-checker-extension/test
     - name: Upload packed extension
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: accessibility-checker-extension for Chrome
         path: accessibility-checker-extension/package/accessibility-checker-extension.zip
@@ -571,7 +571,7 @@ jobs:
     - run: npm run package:browser
       working-directory: accessibility-checker-extension
     - name: Upload packed extension
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: accessibility-checker-extension for Firefox
         path: accessibility-checker-extension/package/accessibility-checker-extension.zip