diff --git a/.github/workflows/check-pr-title.yml b/.github/workflows/check-pr-title.yml
index 014784cc797..ce10d88936a 100644
--- a/.github/workflows/check-pr-title.yml
+++ b/.github/workflows/check-pr-title.yml
@@ -13,7 +13,7 @@ jobs:
         - name: Check PR Title
           uses: Slashgear/action-check-pr-title@v4.3.0
           with:
-            regexp: '[(ENH|BUG|DOC|TST|BLD|PERF|TYP|CLN|CHORE)].*'
+            regexp: '\[(ENH|BUG|DOC|TST|BLD|PERF|TYP|CLN|CHORE)\].*'
             helpMessage: "Please tag your PR title. See https://docs.trychroma.com/contributing#contributing-code-and-ideas"
         - name: Comment explaining failure
           if: failure()