diff --git a/src/handlers/check_pr_tested_label.ts b/src/handlers/check_pr_tested_label.ts
index 00a72ea..fdc3baa 100644
--- a/src/handlers/check_pr_tested_label.ts
+++ b/src/handlers/check_pr_tested_label.ts
@@ -15,6 +15,7 @@ export = {
   event_triggers: [
     "pull_request.opened",
     "pull_request.reopened",
+    "pull_request.synchronize",
     "pull_request.labeled",
     "pull_request.unlabeled",
     "check_run.rerequested",
diff --git a/src/handlers/validate_pr_title.ts b/src/handlers/validate_pr_title.ts
index 1765bda..90988e7 100644
--- a/src/handlers/validate_pr_title.ts
+++ b/src/handlers/validate_pr_title.ts
@@ -47,6 +47,7 @@ export = {
   event_triggers: [
     "pull_request.opened",
     "pull_request.reopened",
+    "pull_request.synchronize",
     "pull_request.edited",
     "check_run.rerequested",
   ],