diff --git a/.github/workflows/auto-update-pyrefly.yml b/.github/workflows/auto-update-pyrefly.yml
index 112f9fd..b6177f2 100644
--- a/.github/workflows/auto-update-pyrefly.yml
+++ b/.github/workflows/auto-update-pyrefly.yml
@@ -25,7 +25,7 @@ jobs:
         id: get-versions
         run: |
           # Get current version from pyproject.toml
-          CURRENT_VERSION=$(grep -oP 'pyrefly==\K[0-9.]+' pyproject.toml)
+          CURRENT_VERSION=$(grep -oP 'pyrefly==\K[0-9]+\.[0-9]+\.[0-9]+(\.dev[0-9]+)?' pyproject.toml)
           echo "Current version: $CURRENT_VERSION"
           echo "current_version=$CURRENT_VERSION" >> $GITHUB_OUTPUT