diff --git a/core/collection/timingwheel_test.go b/core/collection/timingwheel_test.go
index 225a11c8..d85955fa 100644
--- a/core/collection/timingwheel_test.go
+++ b/core/collection/timingwheel_test.go
@@ -213,7 +213,10 @@ func TestTimingWheel_SetTimer(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		test := test
 		t.Run(stringx.RandId(), func(t *testing.T) {
+			t.Parallel()
+
 			var count int32
 			ticker := timex.NewFakeTicker()
 			tick := func() {
@@ -291,7 +294,10 @@ func TestTimingWheel_SetAndMoveThenStart(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		test := test
 		t.Run(stringx.RandId(), func(t *testing.T) {
+			t.Parallel()
+
 			var count int32
 			ticker := timex.NewFakeTicker()
 			tick := func() {
@@ -376,7 +382,10 @@ func TestTimingWheel_SetAndMoveTwice(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		test := test
 		t.Run(stringx.RandId(), func(t *testing.T) {
+			t.Parallel()
+
 			var count int32
 			ticker := timex.NewFakeTicker()
 			tick := func() {
@@ -454,7 +463,10 @@ func TestTimingWheel_ElapsedAndSet(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		test := test
 		t.Run(stringx.RandId(), func(t *testing.T) {
+			t.Parallel()
+
 			var count int32
 			ticker := timex.NewFakeTicker()
 			tick := func() {
@@ -542,7 +554,10 @@ func TestTimingWheel_ElapsedAndSetThenMove(t *testing.T) {
 	}
 
 	for _, test := range tests {
+		test := test
 		t.Run(stringx.RandId(), func(t *testing.T) {
+			t.Parallel()
+
 			var count int32
 			ticker := timex.NewFakeTicker()
 			tick := func() {
diff --git a/rpcx/internal/balancer/p2c/p2c_test.go b/rpcx/internal/balancer/p2c/p2c_test.go
index 163ba934..c3043db9 100644
--- a/rpcx/internal/balancer/p2c/p2c_test.go
+++ b/rpcx/internal/balancer/p2c/p2c_test.go
@@ -54,6 +54,7 @@ func TestP2cPicker_Pick(t *testing.T) {
 		test := test
 		t.Run(test.name, func(t *testing.T) {
 			t.Parallel()
+
 			const total = 100000
 			builder := new(p2cPickerBuilder)
 			ready := make(map[resolver.Address]balancer.SubConn)