diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4d63036..bc0f381 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -32,7 +32,7 @@ jobs:
 
       # Checkout gallery code and get packages.
       - name: Checkout gallery code
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - run: flutter pub get -v
 
       - run: flutter build ${{ matrix.target }}
diff --git a/.github/workflows/release_deploy_play_store.yml b/.github/workflows/release_deploy_play_store.yml
index 6f5dafe..6524a8e 100644
--- a/.github/workflows/release_deploy_play_store.yml
+++ b/.github/workflows/release_deploy_play_store.yml
@@ -29,7 +29,7 @@ jobs:
 
       # Checkout gallery code and get packages.
       - name: Checkout gallery code
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - run: flutter pub get
 
       # Setup Ruby, Bundler, and Gemfile dependencies
diff --git a/.github/workflows/release_deploy_web.yml b/.github/workflows/release_deploy_web.yml
index 8d516e7..d07ff7e 100644
--- a/.github/workflows/release_deploy_web.yml
+++ b/.github/workflows/release_deploy_web.yml
@@ -34,7 +34,7 @@ jobs:
 
       # Checkout gallery code and get packages.
       - name: Checkout gallery code
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - run: flutter pub get
 
       # Build and deploy (by default, to staging).
diff --git a/.github/workflows/release_draft_github_release.yml b/.github/workflows/release_draft_github_release.yml
index d6b43a2..cd1db40 100644
--- a/.github/workflows/release_draft_github_release.yml
+++ b/.github/workflows/release_draft_github_release.yml
@@ -91,7 +91,7 @@ jobs:
       - run: flutter doctor -v
       # Checkout gallery code, recreate missing files, and get packages.
       - name: Checkout gallery code
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - run: flutter create .
       - run: flutter pub get
 
diff --git a/.github/workflows/scorecards-analysis.yml b/.github/workflows/scorecards-analysis.yml
index 3298302..3fc4374 100644
--- a/.github/workflows/scorecards-analysis.yml
+++ b/.github/workflows/scorecards-analysis.yml
@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5f69e08..d4ca3a6 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,7 +25,7 @@ jobs:
 
       # Checkout gallery code and get packages.
       - name: Checkout gallery code
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - run: flutter pub get -v
 
       # Analyze, check formatting, and run unit tests.
@@ -49,7 +49,7 @@ jobs:
 
       # Checkout gallery code and get packages.
       - name: Checkout gallery code
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - run: flutter pub get -v
 
       - run: flutter test test_benchmarks
@@ -67,7 +67,7 @@ jobs:
 
       # Checkout gallery code and get packages.
       - name: Checkout gallery code
-        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
+        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab
       - run: flutter pub get -v
 
       # Run the golden tests and upload failed test artifacts.