diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a619ecc..11790e4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5.0.0-beta
+        uses: actions/checkout@v4
       - name: Compile calculator
         run: gcc -fprofile-arcs -ftest-coverage -O0 -o test_calculator test_calculator.c calculator.c
       - name: Run tests