diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index be03338..f8fc394 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
     - name: Check out repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Install Octave
       uses: ./.