diff --git a/.gitea/workflows/build-base.yml b/.gitea/workflows/build-base.yml
index 4d1f1c5..c5aad51 100644
--- a/.gitea/workflows/build-base.yml
+++ b/.gitea/workflows/build-base.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
diff --git a/.gitea/workflows/build-cli.yml b/.gitea/workflows/build-cli.yml
index c4af75a..e916004 100644
--- a/.gitea/workflows/build-cli.yml
+++ b/.gitea/workflows/build-cli.yml
@@ -23,7 +23,7 @@ jobs:
       cancel-in-progress: false
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
diff --git a/.gitea/workflows/build-terraform-shell.yml b/.gitea/workflows/build-terraform-shell.yml
index 8a97914..98dac05 100644
--- a/.gitea/workflows/build-terraform-shell.yml
+++ b/.gitea/workflows/build-terraform-shell.yml
@@ -23,7 +23,7 @@ jobs:
       cancel-in-progress: false
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3