diff --git a/README.md b/README.md
index d5b3ca6..c432f80 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,7 @@ on:
     - cron: "0 0 * * *"
 
   pull_request:
+    types: [opened]
 ```
 
 Mergeabot knows if it's running on a `pull_request` event in a Dependabot PR
@@ -59,19 +60,6 @@ and, if so, leaves a comment on the PR indicating, roughly, "I got this."
 
 ![Mergeabot comment on opened event](./screenshots/opened-comment.png)
 
-When configured this way, Mergeabot will run when the PR is opened or updated,
-so it can let you know that the updates have reset the clock on the quarantine:
-
-![Mergeabot comment on synchronized event](./screenshots/synchronized-comment.png)
-
-If you don't prefer this, just limit it to only `opened` events:
-
-```yaml
-on:
-  pull_request:
-    types: [opened]
-```
-
 ## Permissions
 
 Dependabot PRs use a token with read-only permissions by default, so you'll need
@@ -98,6 +86,7 @@ on:
     - cron: "0 0 * * *"
 
   pull_request:
+    types: [opened]
 
 permissions:
   contents: write
diff --git a/screenshots/synchronized-comment.png b/screenshots/synchronized-comment.png
deleted file mode 100644
index 72046d9..0000000
Binary files a/screenshots/synchronized-comment.png and /dev/null differ