diff --git a/.github/workflows/doxygen.yml b/.github/workflows/doxygen.yml
index f777829..f78201e 100644
--- a/.github/workflows/doxygen.yml
+++ b/.github/workflows/doxygen.yml
@@ -18,7 +18,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
         
     - name: Doxygen Action
       uses: mattnotmitt/doxygen-action@v1.1.0