diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index b4179835..f104e517 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -9,3 +9,12 @@ updates:
     directory: "/" # Location of package manifests
     schedule:
       interval: "daily"
+  - 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 8a18121d..5354f7a0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,10 +15,10 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: '22'
           cache: 'npm'
diff --git a/.github/workflows/e2e-autotest.yml b/.github/workflows/e2e-autotest.yml
index ccb20914..52270c19 100644
--- a/.github/workflows/e2e-autotest.yml
+++ b/.github/workflows/e2e-autotest.yml
@@ -36,10 +36,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: '22'
           cache: npm
@@ -54,7 +54,7 @@ jobs:
         run: npx @vscode/vsce@latest package -o vscode-java-pack-pr.vsix
 
       - name: Upload branch VSIX
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: pack-vsix
           path: vscode-java-pack-pr.vsix
@@ -67,7 +67,7 @@ jobs:
       matrix: ${{ steps.scan.outputs.matrix }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Resolve test plan matrix
         id: scan
@@ -99,7 +99,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       - name: Clone vscode-java (test projects)
         run: git clone --depth 1 https://github.com/redhat-developer/vscode-java.git ../vscode-java
@@ -108,13 +108,13 @@ jobs:
         run: git clone --depth 1 https://github.com/eclipse-jdtls/eclipse.jdt.ls.git ../eclipse.jdt.ls
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 20
 
       - name: Setup Java 25 (for java25 test plans)
         if: contains(matrix.plan, 'java25')
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4.8.0
         with:
           distribution: temurin
           java-version: 25-ea
@@ -141,7 +141,7 @@ jobs:
           }
 
       - name: Setup Java 21
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@c1e323688fd81a25caa38c78aa6df2d33d3e20d9 # v4.8.0
         with:
           distribution: temurin
           java-version: 21
@@ -162,7 +162,7 @@ jobs:
 
       - name: Download vscode-java-pack VSIX (from branch)
         if: ${{ github.event_name != 'schedule' }}
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         with:
           name: pack-vsix
           path: vsix
@@ -345,7 +345,7 @@ jobs:
 
       - name: Upload results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: results-${{ matrix.plan }}-${{ matrix.os }}
           path: test-results/
@@ -359,7 +359,7 @@ jobs:
 
     steps:
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: 20
 
@@ -367,7 +367,7 @@ jobs:
         run: npm install -g @vscjava/vscode-autotest
 
       - name: Download all results
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         with:
           pattern: results-*
           path: all-results
@@ -404,7 +404,7 @@ jobs:
 
       - name: Upload aggregate results
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: e2e-aggregate-summary
           path: test-results/summary.md
diff --git a/.github/workflows/issueLens-run.yml b/.github/workflows/issueLens-run.yml
index 4575feb6..5cfe23f8 100644
--- a/.github/workflows/issueLens-run.yml
+++ b/.github/workflows/issueLens-run.yml
@@ -19,10 +19,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
       
       - name: Setup Node.js 22
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
         with:
           node-version: '22'
       
@@ -61,7 +61,7 @@ jobs:
           REPORT_RECIPIENTS: ${{ secrets.REPORT_RECIPIENTS }}
       
       - name: Upload triage output
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: triage-output
           path: triage-output.txt
diff --git a/.github/workflows/issueSnapshot.yml b/.github/workflows/issueSnapshot.yml
index ae14c533..5e0bbaf2 100644
--- a/.github/workflows/issueSnapshot.yml
+++ b/.github/workflows/issueSnapshot.yml
@@ -14,16 +14,16 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           REPO: ${{ github.event.repository.name }}
       - name: Save artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@ff15f0306b3f739f7b6fd43fb5d26cd321bd4de5 # v3.2.1
         with:
           path: ./*.json
           retention-days: 1
       - name: Log in to Azure
-        uses: azure/login@v1
+        uses: azure/login@cb79c773a3cfa27f31f25eb3f677781210c9ce3d # v1.6.1
         with:
           creds: ${{ secrets.AZURE_CREDS }}
       - name: Upload to Azure
-        uses: azure/CLI@v1
+        uses: azure/CLI@4db43908b9df2e7ac93c8275a8f9a448c59338dd # v1.0.9
         with:
           inlineScript: |
             az storage blob upload-batch --account-name ${{ vars.AZURE_STORAGE_ACCOUNT_NAME }} --auth-mode login -d ${{ vars.AZURE_STORAGE_CONTAINER_NAME }} -s .
diff --git a/.github/workflows/no-response.yml b/.github/workflows/no-response.yml
index 724c9292..cde4c4f5 100644
--- a/.github/workflows/no-response.yml
+++ b/.github/workflows/no-response.yml
@@ -18,7 +18,7 @@ jobs:
   noResponse:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v9
+      - uses: actions/stale@5bef64f19d7facfb25b37b414482c7164d639639 # v9.1.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           # Only process issues with "needs more info" label
diff --git a/.github/workflows/triage-agent.yml b/.github/workflows/triage-agent.yml
index 57d97837..4be95f23 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@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
 
       - 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 }}';