diff --git a/.github/workflows/format-code.yml b/.github/workflows/format-code.yml
index 45f1786..eac5117 100644
--- a/.github/workflows/format-code.yml
+++ b/.github/workflows/format-code.yml
@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: ${{ github.head_ref }}
 
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index bfb051f..ea82c21 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 1