diff --git a/.gitea/workflows/build-base.yml b/.gitea/workflows/build-base.yml
index 5fea7d7..659d3ad 100644
--- a/.gitea/workflows/build-base.yml
+++ b/.gitea/workflows/build-base.yml
@@ -16,7 +16,7 @@ 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@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4
diff --git a/.gitea/workflows/build-cli.yml b/.gitea/workflows/build-cli.yml
index 27d7101..5623591 100644
--- a/.gitea/workflows/build-cli.yml
+++ b/.gitea/workflows/build-cli.yml
@@ -19,7 +19,7 @@ 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@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4
diff --git a/.gitea/workflows/build-terraform-shell.yml b/.gitea/workflows/build-terraform-shell.yml
index fb8b078..3ab5d2c 100644
--- a/.gitea/workflows/build-terraform-shell.yml
+++ b/.gitea/workflows/build-terraform-shell.yml
@@ -19,7 +19,7 @@ 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@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4