diff --git a/src/utest/smp/smp_affinity_pri2_tc.c b/src/utest/smp/smp_affinity_pri2_tc.c
index 653582b8196..1d8de870b24 100644
--- a/src/utest/smp/smp_affinity_pri2_tc.c
+++ b/src/utest/smp/smp_affinity_pri2_tc.c
@@ -24,7 +24,7 @@
 static int run_num = 10;
 #define THREAD_STACK_SIZE UTEST_THR_STACK_SIZE
 #define THREAD_PRIORITY   2
-#define LOW_PRIORITY 50
+#define LOW_PRIORITY 30
 #define THIGH_PRIORITY  10
 static rt_thread_t        threads[RT_CPUS_NR];
 static rt_thread_t        temp_thread;