diff --git a/.github/workflows/test-external.yaml b/.github/workflows/test-external.yaml
index 4feb08c..c12f37f 100644
--- a/.github/workflows/test-external.yaml
+++ b/.github/workflows/test-external.yaml
@@ -24,7 +24,7 @@ jobs:
           - "3.3"
     
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{matrix.ruby}}