diff --git a/workspace-provider/src/main/java/com/aliware/tianchi/TestRequestLimiter.java b/workspace-provider/src/main/java/com/aliware/tianchi/TestRequestLimiter.java
index 98819852587f4cbd8b7b1a2895d0887cd9f6a358..135a339585bda2d6d9d153907710befc5c449108 100644
--- a/workspace-provider/src/main/java/com/aliware/tianchi/TestRequestLimiter.java
+++ b/workspace-provider/src/main/java/com/aliware/tianchi/TestRequestLimiter.java
@@ -20,7 +20,7 @@ public class TestRequestLimiter implements RequestLimiter {
      */
     @Override
     public boolean tryAcquire(Request request, int activeTaskCount) {
-        if (activeTaskCount > 750) return false;
+        if (activeTaskCount > 188) return false;
         return true;
     }