diff --git a/.github/workflows/robot/internal/bot/bot.go b/.github/workflows/robot/internal/bot/bot.go
index 5bd8fe659f5..e1406034964 100644
--- a/.github/workflows/robot/internal/bot/bot.go
+++ b/.github/workflows/robot/internal/bot/bot.go
@@ -149,7 +149,8 @@ func isAutoGeneratedFile(name string) bool {
 		strings.HasSuffix(name, ".pb.go") ||
 		strings.HasSuffix(name, "_pb.js") ||
 		strings.HasSuffix(name, "_pb.d.ts") ||
-		strings.Contains(name, "webassets/")
+		strings.Contains(name, "webassets/") ||
+		strings.Contains(name, "vendor/")
 }
 
 func isReleaseBranch(branch string) bool {
diff --git a/.github/workflows/robot/internal/bot/bot_test.go b/.github/workflows/robot/internal/bot/bot_test.go
index da1c5ffbe72..14811d68057 100644
--- a/.github/workflows/robot/internal/bot/bot_test.go
+++ b/.github/workflows/robot/internal/bot/bot_test.go
@@ -113,6 +113,7 @@ func TestIsLargePR(t *testing.T) {
 				{Name: "file_pb.js", Additions: 10000, Deletions: 2000},
 				{Name: "file2_pb.d.ts", Additions: 10000, Deletions: 2000},
 				{Name: "webassets/12345/app.js", Additions: 10000, Deletions: 2000},
+				{Name: "vendor/golang.org/x/sys", Additions: 10000, Deletions: 2000},
 			},
 			isLarge: false,
 		},