diff --git a/README.md b/README.md
index 17898c7..6db80bc 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ name: Monthly issue metrics
 on:
   workflow_dispatch:
   schedule:
-    - cron: '3 2 1 * *'
+    - cron: "3 2 1 * *"
 
 permissions:
   contents: read