diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..ec8a646
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: ".github/workflows"
+    schedule:
+      interval: "monthly"
+    groups:
+      actions:
+        patterns:
+          - "*"
diff --git a/.github/workflows/ci_workflows.yml b/.github/workflows/ci_workflows.yml
index 5eb01b0..8131f1e 100644
--- a/.github/workflows/ci_workflows.yml
+++ b/.github/workflows/ci_workflows.yml
@@ -14,7 +14,7 @@ concurrency:
 
 jobs:
   tests:
-    uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@v1
+    uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@924441154cf3053034c6513d5e06c69d262fb9a6  # v1.13.0
     with:
       envs: |
         - linux: codestyle
@@ -33,7 +33,7 @@ jobs:
         - linux: py312-test-devdeps
   publish:
     needs: tests
-    uses: OpenAstronomy/github-actions-workflows/.github/workflows/publish_pure_python.yml@v1
+    uses: OpenAstronomy/github-actions-workflows/.github/workflows/publish_pure_python.yml@924441154cf3053034c6513d5e06c69d262fb9a6  # v1.13.0
     with:
       test_extras: test
       test_command: pytest $GITHUB_WORKSPACE/tests; pytest --arraydiff $GITHUB_WORKSPACE/tests