diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..6cc0071
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,8 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    cooldown:
+      default-days: 7
diff --git a/.github/workflows/accessibility-alt-text-bot.yml b/.github/workflows/accessibility-alt-text-bot.yml
index bec151a..03785fa 100644
--- a/.github/workflows/accessibility-alt-text-bot.yml
+++ b/.github/workflows/accessibility-alt-text-bot.yml
@@ -20,4 +20,4 @@ jobs:
   accessibility_alt_text_bot:
     runs-on: ubuntu-latest
     steps:
-       - uses: github/accessibility-alt-text-bot@v1.6.0
+       - uses: github/accessibility-alt-text-bot@34208bfa7d76a87c500c9d0cb08567d2f13636d3 # v1.6.0
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 8d1aa75..e6f9b92 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -11,8 +11,8 @@ jobs:
   publish-npm:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-node@v3
+      - uses: actions/checkout@a37ce9120846195fa4ece8f58b268e6043cb2f26 # v3.7.0
+      - uses: actions/setup-node@3235b876344d2a9aa001b8d1453c930bba69e610 # v3.9.1
         with:
           node-version: 18
           registry-url: https://registry.npmjs.org/
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c1a62e2..10c9122 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,9 +7,9 @@ jobs:
       contents: read
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@0717577d45739eb3c851188b29f50ed6c0b2194e # v2.8.0
     - name: Use Node.js
-      uses: actions/setup-node@v1
+      uses: actions/setup-node@f1f314fca9dfce2769ece7d933488f076716723e # v1.4.6
       with:
         node-version: 18.x
     - name: npm install, build, and test