diff --git a/src/test-utils/runtime-source-guardrail-scan.ts b/src/test-utils/runtime-source-guardrail-scan.ts
index 9d7b5d787..5596d2fe0 100644
--- a/src/test-utils/runtime-source-guardrail-scan.ts
+++ b/src/test-utils/runtime-source-guardrail-scan.ts
@@ -23,7 +23,7 @@ const DEFAULT_GUARDRAIL_SKIP_PATTERNS = [
 ];
 
 const runtimeSourceGuardrailCache = new Map<string, Promise<RuntimeSourceGuardrailFile[]>>();
-const FILE_READ_CONCURRENCY = 16;
+const FILE_READ_CONCURRENCY = 24;
 
 export function shouldSkipGuardrailRuntimeSource(relativePath: string): boolean {
   return DEFAULT_GUARDRAIL_SKIP_PATTERNS.some((pattern) => pattern.test(relativePath));