diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 39f8c04..cae3462 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,13 +13,13 @@ jobs:
       matrix:
         distro: [focal, noble]
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
     - name: Run package build ${{ matrix.distro }}
       run: script/cibuild-create-packages ${{ matrix.distro }}
     - name: Tar files
       run: tar -cvf glb-director-${{ matrix.distro }}.tar $GITHUB_WORKSPACE/tmp/build
     - name: Upload Artifact
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
       with:
         name: glb-director-${{ matrix.distro }}
         path: glb-director-${{ matrix.distro }}.tar
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 77f68e5..c36d635 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -27,11 +27,11 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v7
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v4.38.2
+      uses: github/codeql-action/init@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
       with:
         languages: ${{ matrix.language }}
         # If you wish to specify custom queries, you can do so here or in a config file.
@@ -44,8 +44,8 @@ jobs:
     # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v4.38.2
+      uses: github/codeql-action/autobuild@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v4.38.2
+      uses: github/codeql-action/analyze@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
       
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 638c672..b81f967 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -23,10 +23,10 @@ jobs:
         distro: [focal, noble]
     steps:
       - name: Checkout code
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v4
+        uses: docker/setup-buildx-action@f87e5991a6d7451dcb8d9637bfbc97413f497069 # v4
 
       - name: Build image
         run: |
@@ -34,7 +34,7 @@ jobs:
           docker save glb-director-build-${{ matrix.distro }}:latest --output glb-director-build-${{ matrix.distro }}.tar
 
       - name: Upload image artifact
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
         with:
           name: build-${{ matrix.distro }}
           path: glb-director-build-${{ matrix.distro }}.tar
@@ -59,10 +59,10 @@ jobs:
             test-suite: director
     steps:
       - name: Checkout code
-        uses: actions/checkout@v7
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
 
       - name: Download image artifact
-        uses: actions/download-artifact@v8
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
         with:
           name: build-${{ matrix.distro }}