diff --git a/testdata/diff-file/action.yaml b/testdata/diff-file/action.yaml
index 0000001..0000002 100644
--- a/testdata/diff-file/action.yaml
+++ b/testdata/diff-file/action.yaml
@@ -7,5 +7,5 @@ jobs:
     permissions: {}
     steps:
       - uses: actions/checkout@v3.6.0
-      - uses: actions/setup-go@v3.5.0
+      - uses: actions/setup-go@v4.0.0
       - uses: actions/cache@v3.3.1
