diff --git a/locker/empty_locker.go b/locker/empty_locker.go
index ca4a26b..e54d4ee 100644
--- a/locker/empty_locker.go
+++ b/locker/empty_locker.go
@@ -1,9 +1,6 @@
 package locker
 
-// 空锁
-
-var _ Locker = &emptyLocker{}
-var _ RWLocker = &emptyLocker{}
+var EmptyLocker = &emptyLocker{}
 
 type emptyLocker struct{}
 
diff --git a/locker/locker.go b/locker/locker.go
index ed63ea4..2e8215e 100644
--- a/locker/locker.go
+++ b/locker/locker.go
@@ -15,11 +15,6 @@ type RWLocker interface {
 	TryRLock() bool
 }
 
-type locker struct {
-	*sync.Mutex
+func NewLocker() *sync.Mutex {
+	return &sync.Mutex{}
 }
-
-func NewLocker() *locker {
-	return &locker{Mutex: &sync.Mutex{}}
-}
-
diff --git a/locker/rw_locker.go b/locker/rw_locker.go
index ed7d0c5..7370b64 100644
--- a/locker/rw_locker.go
+++ b/locker/rw_locker.go
@@ -2,12 +2,8 @@ package locker
 
 import "sync"
 
-var _ RWLocker = &rwLocker{}
+var _ RWLocker = &sync.RWMutex{}
 
-type rwLocker struct {
-	*sync.RWMutex
-}
-
-func NewRWLocker() *rwLocker {
-	return &rwLocker{RWMutex: &sync.RWMutex{}}
+func NewRWLocker() *sync.RWMutex {
+	return &sync.RWMutex{}
 }