diff --git a/.github/workflows/build_image.yml b/.github/workflows/build_image.yml
index 07048d9..600f01c 100644
--- a/.github/workflows/build_image.yml
+++ b/.github/workflows/build_image.yml
@@ -6,15 +6,15 @@ jobs:
         runs-on: ubuntu-latest
         steps:
             - name: Workflow run cleanup action
-              uses: rokroskar/workflow-run-cleanup-action@v0.3.3
+              uses: rokroskar/workflow-run-cleanup-action@ee1451b869ba1e381729b3d40489997021f0d562 # v0.3.3
               env:
                 GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-            - uses: actions/setup-python@v6
+            - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7
               with:
                 python-version: '3.14' # Version range or exact version of a Python version to use, using SemVer's version range syntax
-            - uses: actions/checkout@v6.0.2
+            - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
             - name: Build with retry
-              uses: Wandalen/wretry.action@v3.8.0
+              uses: Wandalen/wretry.action@e68c23e6309f2871ca8ae4763e7629b9c258e1ea # v3.8.0
               with:
                 command: docker build --no-cache  . 
                 attempt_limit: 3
diff --git a/.github/workflows/create_release_image.yml b/.github/workflows/create_release_image.yml
index 517954c..7f326f0 100644
--- a/.github/workflows/create_release_image.yml
+++ b/.github/workflows/create_release_image.yml
@@ -11,17 +11,17 @@ jobs:
      - name: Get the version
        id: get_version
        run: echo ::set-output name=VERSION::${GITHUB_REF/refs\/tags\//}
-     - uses: actions/checkout@master
+     - uses: actions/checkout@61b9e3751b92087fd0b06925ba6dd6314e06f089 # master
      - name: Set up Docker Buildx
-       uses: docker/setup-buildx-action@v4
+       uses: docker/setup-buildx-action@bb05f3f5519dd87d3ba754cc423b652a5edd6d2c # v4
      - name: Login to de.NBI OCI
-       uses: docker/login-action@v4
+       uses: docker/login-action@af1e73f918a031802d376d3c8bbc3fe56130a9b0 # v4
        with:
           registry: oci.bi.denbi.de
           username: ${{ secrets.OCI_DENBI_USERNAME }}
           password: ${{ secrets.OCI_DENBI_TOKEN }}
      - name: Build and publish image to de.NBI OCI
-       uses: docker/build-push-action@v7
+       uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7
        env:
           REPOSITORY: https://github.com/deNBI/cloud-user-docs/archive/master.tar.gz  
        with:
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 1ef6a46..45c4af7 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -9,20 +9,20 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Workflow run cleanup action
-      uses: rokroskar/workflow-run-cleanup-action@v0.3.3
+      uses: rokroskar/workflow-run-cleanup-action@ee1451b869ba1e381729b3d40489997021f0d562 # v0.3.3
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-    - uses: actions/checkout@master
+    - uses: actions/checkout@61b9e3751b92087fd0b06925ba6dd6314e06f089 # master
     - name: Set up Docker Buildx
-      uses: docker/setup-buildx-action@v4
+      uses: docker/setup-buildx-action@bb05f3f5519dd87d3ba754cc423b652a5edd6d2c # v4
     - name: Login to de.NBI OCI
-      uses: docker/login-action@v4
+      uses: docker/login-action@af1e73f918a031802d376d3c8bbc3fe56130a9b0 # v4
       with:
           registry: oci.bi.denbi.de
           username: ${{ secrets.OCI_DENBI_USERNAME }}
           password: ${{ secrets.OCI_DENBI_TOKEN }}
     - name: Build and publish image to de.NBI OCI
-      uses: docker/build-push-action@v7
+      uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7
       env:
           REPOSITORY: https://github.com/deNBI/cloud-user-docs/archive/staging.tar.gz  
       with:
diff --git a/requirements.txt b/requirements.txt
index e8daa95..cd3a643 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
-mkdocs-material==9.7.6
+mkdocs-material==9.7.7
 mkdocs-glightbox==0.5.2
 mkdocs==1.6.1
 mkdocs-htmlproofer-plugin==1.5.0
 pygments==2.20.0
-pymdown-extensions==11.0.0
+pymdown-extensions==11.0.1
 mkdocs-git-revision-date-localized-plugin==1.5.3
 mkdocs-macros-plugin==1.5.0