diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index ad0dda822..01876fb0d 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -11,7 +11,7 @@ jobs:
   build-and-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # Setup both environments in correct order
       - name: Setup full environment
@@ -23,7 +23,7 @@ jobs:
 
       # Store build artifacts for release job
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: python-package-distributions
           path: dist/
diff --git a/.github/workflows/quality.yml b/.github/workflows/quality.yml
index ae428c972..f344375ed 100644
--- a/.github/workflows/quality.yml
+++ b/.github/workflows/quality.yml
@@ -11,7 +11,7 @@ jobs:
   quality:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # Setup both environments in correct order
       - name: Setup full environment
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 05108e49d..b4d0c213e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -14,11 +14,11 @@ jobs:
     runs-on: ubuntu-latest
     environment: release
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # Download build artifacts from build-and-test job
       - name: Download build artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v6
         with:
           name: python-package-distributions
           path: dist/
diff --git a/.github/workflows/test-javascript.yml b/.github/workflows/test-javascript.yml
index c9b2928ec..1d3f22dbf 100644
--- a/.github/workflows/test-javascript.yml
+++ b/.github/workflows/test-javascript.yml
@@ -11,7 +11,7 @@ jobs:
   test-javascript:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # Setup environment using reusable action
       - name: Setup JavaScript environment
diff --git a/.github/workflows/test-python.yml b/.github/workflows/test-python.yml
index 31db1fa94..f0230b9da 100644
--- a/.github/workflows/test-python.yml
+++ b/.github/workflows/test-python.yml
@@ -14,7 +14,7 @@ jobs:
       matrix:
         python-version: ['3.10', '3.11', '3.12']
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       # Setup both environments in correct order
       - name: Setup full environment