diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7640a75..aa0b408 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -116,7 +116,7 @@ jobs:
           enable-cache: true
 
       - name: check GITHUB_REF matches package version
-        uses: samuelcolvin/check-python-version@v4.1
+        uses: samuelcolvin/check-python-version@v5
         with:
           version_file_path: pydantic_extra_types/__init__.py