diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 0cfc43c..960dba9 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -6,5 +6,7 @@ updates:
       interval: "weekly"
   - package-ecosystem: "gomod"
     directory: "/"
+    # otherwise auto-merge without merge-queue might break checksums
+    open-pull-requests-limit: 1
     schedule:
       interval: "weekly"