diff --git a/.github/workflows/actions-update.yml b/.github/workflows/actions-update.yml
index 51fd019..9880f3b 100644
--- a/.github/workflows/actions-update.yml
+++ b/.github/workflows/actions-update.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v4.1.6
         with:
           # [Required] Access token with `workflow` scope.
           token: ${{ secrets.WORKFLOW_TOKEN }}
diff --git a/.github/workflows/requirements-update.yml b/.github/workflows/requirements-update.yml
index e5148e3..23d5268 100644
--- a/.github/workflows/requirements-update.yml
+++ b/.github/workflows/requirements-update.yml
@@ -25,12 +25,12 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v4.1.6
       with:
         ref: development
 
     - name: Setup python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v5.1.0
       with:
         python-version: '3.11'
 
@@ -47,7 +47,7 @@ jobs:
           --output-file requirements.txt requirements.in
 
     - name: Create Pull Request
-      uses: peter-evans/create-pull-request@v6
+      uses: peter-evans/create-pull-request@v6.0.5
       with:
         token: ${{ secrets.GH_TOKEN }}
         base: development
diff --git a/.github/workflows/scan.yml b/.github/workflows/scan.yml
index 15a3d1c..4eb4e38 100644
--- a/.github/workflows/scan.yml
+++ b/.github/workflows/scan.yml
@@ -22,13 +22,13 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v4.1.6
 
     - name: Set up Docker Buildx
-      uses: docker/setup-buildx-action@v3
+      uses: docker/setup-buildx-action@v3.3.0
 
     - name: Login to DockerHub
-      uses: docker/login-action@v3
+      uses: docker/login-action@v3.1.0
       with:
         username: ${{ secrets.DOCKER_HUB_USERNAME }}
         password: ${{ secrets.DOCKER_HUB_PASSWORD }}
@@ -44,7 +44,7 @@ jobs:
 
     - name: Build the image
       id: buildimage
-      uses: docker/build-push-action@v5
+      uses: docker/build-push-action@v5.3.0
       with:
         load: true
         context: ./
@@ -53,7 +53,7 @@ jobs:
         tags: ${{ steps.setimagename.outputs.imagename }}
 
     - name: Run Trivy vulnerability scanner
-      uses: aquasecurity/trivy-action@master
+      uses: aquasecurity/trivy-action@0.21.0
       with:
         image-ref: '${{ steps.setimagename.outputs.imagename }}'
         format: 'table'
diff --git a/.github/workflows/test-image-build.yml b/.github/workflows/test-image-build.yml
index b9700fe..f1bb53c 100644
--- a/.github/workflows/test-image-build.yml
+++ b/.github/workflows/test-image-build.yml
@@ -22,13 +22,13 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v4.1.6
 
     - name: Set up Docker Buildx
-      uses: docker/setup-buildx-action@v3
+      uses: docker/setup-buildx-action@v3.3.0
 
     - name: Login to DockerHub
-      uses: docker/login-action@v3
+      uses: docker/login-action@v3.1.0
       with:
         username: ${{ secrets.DOCKER_HUB_USERNAME }}
         password: ${{ secrets.DOCKER_HUB_PASSWORD }}
@@ -44,7 +44,7 @@ jobs:
 
     - name: Build the image
       id: buildimage
-      uses: docker/build-push-action@v5
+      uses: docker/build-push-action@v5.3.0
       with:
         context: ./
         file: ./Dockerfile