diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 3a2bc9e..2f89b0c 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,3 +1,4 @@
+# Disable routine version-update PRs without changing security update or alert settings.
 version: 2
 updates:
   - package-ecosystem: github-actions
@@ -7,7 +8,7 @@ updates:
       day: monday
       time: "04:00"
       timezone: Asia/Shanghai
-    open-pull-requests-limit: 2
+    open-pull-requests-limit: 0
     groups:
       github-actions-minor-and-patch:
         patterns: