diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a71bf3b..e551841 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
         install-type: [dev]
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - uses: actions/cache@v3
       with:
         path: ~/.cache/pip
@@ -38,7 +38,7 @@ jobs:
         install-type: [dev]
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - uses: actions/cache@v3
       with:
         path: ~/.cache/pip
@@ -69,7 +69,7 @@ jobs:
           install-type: dev_bdist_wheel
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - uses: actions/cache@v3
       with:
         path: ~/.cache/pip