diff --git a/src/tairhash.c b/src/tairhash.c
index 7fe396d..0fd0bf3 100755
--- a/src/tairhash.c
+++ b/src/tairhash.c
@@ -1,26 +1,17 @@
 /*
  * Copyright 2021 Alibaba Tair Team
- * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
- * following conditions are met:
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
- * disclaimer.
+ *    http://www.apache.org/licenses/LICENSE-2.0
  *
- * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
- * following disclaimer in the documentation and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #define REDISMODULE_EXPERIMENTAL_API
diff --git a/src/tairhash.h b/src/tairhash.h
index f890706..a0ddcb5 100755
--- a/src/tairhash.h
+++ b/src/tairhash.h
@@ -1,26 +1,17 @@
 /*
  * Copyright 2021 Alibaba Tair Team
- * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
- * following conditions are met:
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
- * disclaimer.
+ *    http://www.apache.org/licenses/LICENSE-2.0
  *
- * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
  */
 
 #ifndef __TAIRHASH_H__