diff --git a/.gitea/workflows/build-base.yml b/.gitea/workflows/build-base.yml
index 208627e..60e84ce 100644
--- a/.gitea/workflows/build-base.yml
+++ b/.gitea/workflows/build-base.yml
@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4
 
       - name: Login to registry
         uses: docker/login-action@v3
diff --git a/.gitea/workflows/build-cli.yml b/.gitea/workflows/build-cli.yml
index 2c318c8..71fa707 100644
--- a/.gitea/workflows/build-cli.yml
+++ b/.gitea/workflows/build-cli.yml
@@ -22,7 +22,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4
 
       - name: Login to registry
         uses: docker/login-action@v3
diff --git a/.gitea/workflows/build-terraform-shell.yml b/.gitea/workflows/build-terraform-shell.yml
index c140548..bda9e0a 100644
--- a/.gitea/workflows/build-terraform-shell.yml
+++ b/.gitea/workflows/build-terraform-shell.yml
@@ -22,7 +22,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4
 
       - name: Login to registry
         uses: docker/login-action@v3