diff --git a/.github/workflows/php-cs-fixer.yml b/.github/workflows/php-cs-fixer.yml
index 7a20ac9..30a62b7 100644
--- a/.github/workflows/php-cs-fixer.yml
+++ b/.github/workflows/php-cs-fixer.yml
@@ -8,7 +8,7 @@ jobs:
 
         steps:
             - name: Checkout code
-              uses: actions/checkout@v3
+              uses: actions/checkout@v4
               with:
                   ref: ${{ github.head_ref }}
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d3bcf92..d8764b1 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -16,7 +16,7 @@ jobs:
 
         steps:
             -   name: Checkout code
-                uses: actions/checkout@v3
+                uses: actions/checkout@v4
 
             -   name: Install optimizers
                 run: |
diff --git a/.github/workflows/update-changelog.yml b/.github/workflows/update-changelog.yml
index b20f3b6..94df2c3 100644
--- a/.github/workflows/update-changelog.yml
+++ b/.github/workflows/update-changelog.yml
@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: main