diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 8cc8a033..a4a0cf03 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -17,3 +17,12 @@ updates:
     # in case the feed's ingestion lag drifts.
     cooldown:
       default-days: 10
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    groups:
+      github-actions:
+        patterns: ["*"]
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 15f2fcca..de898e32 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -44,7 +44,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     timeout-minutes: 20
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
       - name: Setup Build Environment (Linux)
         if: matrix.os == 'ubuntu-latest'
@@ -53,13 +53,13 @@ jobs:
           sudo apt-get install -y libxkbfile-dev pkg-config libsecret-1-dev libxss1 dbus xvfb libgtk-3-0 libgbm1
 
       - name: Set up JDK 21
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@cf277c60eb25467037889841efdb72551f06f6c3 # v4.9.1
         with:
           java-version: '21'
           distribution: 'adopt'
 
       - name: Setup Node.js environment
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 22
 
@@ -86,7 +86,7 @@ jobs:
         run: tar --exclude='./.git' --exclude='./workspace.tar' -cf workspace.tar .
 
       - name: Upload workspace artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: ${{ matrix.artifact }}
           path: workspace.tar
@@ -99,9 +99,9 @@ jobs:
     outputs:
       matrix: ${{ steps.list.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
-      - uses: actions/setup-node@v4
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 22
 
@@ -131,18 +131,18 @@ jobs:
           sleep 3
 
       - name: Set up JDK 21
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@cf277c60eb25467037889841efdb72551f06f6c3 # v4.9.1
         with:
           java-version: '21'
           distribution: 'adopt'
 
       - name: Setup Node.js environment
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 22
 
       - name: Download workspace artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         with:
           name: ${{ matrix.artifact }}
 
@@ -181,7 +181,7 @@ jobs:
 
       - name: Upload autotest results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: autotest-results-${{ matrix.os-name }}-${{ matrix.plan }}
           path: test-results/
diff --git a/.github/workflows/no-response.yml b/.github/workflows/no-response.yml
index bc3371d1..a492ed60 100644
--- a/.github/workflows/no-response.yml
+++ b/.github/workflows/no-response.yml
@@ -15,7 +15,7 @@ jobs:
   noResponse:
     runs-on: ubuntu-latest
     steps:
-      - uses: lee-dohm/no-response@v0.5.0
+      - uses: lee-dohm/no-response@9bb0a4b5e6a45046f00353d5de7d90fb8bd773bb # v0.5.0
         with:
           token: ${{ github.token }}
           daysUntilClose: 14 # Number of days of inactivity before an Issue is closed for lack of response
diff --git a/.github/workflows/triage-agent.yml b/.github/workflows/triage-agent.yml
index 7d54c9e8..7ca8db26 100644
--- a/.github/workflows/triage-agent.yml
+++ b/.github/workflows/triage-agent.yml
@@ -21,11 +21,11 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@0717577d45739eb3c851188b29f50ed6c0b2194e # v2.8.0
 
       - name: Get issue data
         id: get_issue
-        uses: actions/github-script@v6
+        uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6.4.1
         with:
           script: |
             const eventName = context.eventName;
diff --git a/.github/workflows/triage-all-open-issues.yml b/.github/workflows/triage-all-open-issues.yml
index 092f4ef7..05dae014 100644
--- a/.github/workflows/triage-all-open-issues.yml
+++ b/.github/workflows/triage-all-open-issues.yml
@@ -28,7 +28,7 @@ jobs:
     steps:
       - name: Get all open issues
         id: get_issues
-        uses: actions/github-script@v6
+        uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6.4.1
         with:
           script: |
             // Use Search API to filter issues at API level
@@ -85,7 +85,7 @@ jobs:
       
       - name: Trigger triage workflow for issue
         if: inputs.dry_run != true
-        uses: actions/github-script@v6
+        uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6.4.1
         with:
           script: |
             const issueNumber = '${{ matrix.issue_number }}';
diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index d76de3c1..77ff722c 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -16,10 +16,10 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
 
       - name: Setup Node.js environment
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 20