diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ebf45f67..7f6076c2 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ jobs:
       otps: ${{ steps.versions.outputs.versions }}
     steps:
     - name: Clone the repository
-      uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633
+      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
     - name: Get latest OTP versions
       id: versions
       env: 
@@ -30,7 +30,7 @@ jobs:
     container:
       image: erlang:${{ matrix.otp }}
     steps:
-    - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
     - name: Install dependencies
       run: apt update && apt install --yes jq
     - name: run tests
diff --git a/.github/workflows/uuid.yml b/.github/workflows/uuid.yml
index d321fe92..53b32d5f 100644
--- a/.github/workflows/uuid.yml
+++ b/.github/workflows/uuid.yml
@@ -6,7 +6,7 @@ jobs:
   uuid:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
     - run: sudo apt install --yes jq
     - run: |
         bad_uuid=$(cat config.json | jq --raw-output '.exercises | map(.uuid) | .[]' | grep -vE '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$' || true)