diff --git a/test/registered/radix_cache/unified_radix_tree/test_unified_radix_cache_hicache_pp_kl.py b/test/registered/radix_cache/unified_radix_tree/test_unified_radix_cache_hicache_pp_kl.py
index edfb56dd2..6e6068404 100644
--- a/test/registered/radix_cache/unified_radix_tree/test_unified_radix_cache_hicache_pp_kl.py
+++ b/test/registered/radix_cache/unified_radix_tree/test_unified_radix_cache_hicache_pp_kl.py
@@ -32,7 +32,7 @@ class TestUnifiedQwen3HiCachePP(UnifiedRadixTreeTestMixin, CustomTestCase):
 
     hicache_io_backend = "direct"
     hicache_mem_layout = "page_first_direct"
-    max_running_requests = 4
+    max_running_requests = 2
     kl_threshold = 0.012
     gsm8k_threshold = 0.7
     num_gsm8k_questions = 50