diff --git a/README.md b/README.md
index 9243f2b35e00613bac4bdbaca06dd2e6e8ab1a8d..3ef59c5ece968976935cc3a673683731c61e3216 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,7 @@ Check the requirements first.
 
 ```bash
 go: 1.15
-cmake: >=3.16
+cmake: >=3.18
 gcc: 7.5
 ```
 
diff --git a/internal/core/CMakeLists.txt b/internal/core/CMakeLists.txt
index c84ae20fda04980e6d5dd9e059987aad5a223bef..16f61438821631823b606a4896c7b0357cc89fae 100644
--- a/internal/core/CMakeLists.txt
+++ b/internal/core/CMakeLists.txt
@@ -11,7 +11,7 @@
 # or implied. See the License for the specific language governing permissions and limitations under the License.
 #-------------------------------------------------------------------------------
 
-cmake_minimum_required( VERSION 3.14 )
+cmake_minimum_required( VERSION 3.18 )
 
 add_definitions(-DELPP_THREAD_SAFE)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
diff --git a/internal/core/src/index/CMakeLists.txt b/internal/core/src/index/CMakeLists.txt
index 2f3d4e166390f3a0b764136127802db6135f0d60..54a08eaf2dadf8d15eb30e9dfff792f81381a0a1 100644
--- a/internal/core/src/index/CMakeLists.txt
+++ b/internal/core/src/index/CMakeLists.txt
@@ -11,7 +11,7 @@
 # or implied. See the License for the specific language governing permissions and limitations under the License.
 #-------------------------------------------------------------------------------
 
-cmake_minimum_required(VERSION 3.12)
+cmake_minimum_required(VERSION 3.18)
 message(STATUS "------------------------------KNOWHERE-----------------------------------")
 message(STATUS "Building using CMake version: ${CMAKE_VERSION}")
 
diff --git a/internal/kv/rocksdb/cwrapper/CMakeLists.txt b/internal/kv/rocksdb/cwrapper/CMakeLists.txt
index afaac8100adac56c54944b5799063e482eed5184..a3c1f8ce0b09361d860dba37390a45124f301e3a 100644
--- a/internal/kv/rocksdb/cwrapper/CMakeLists.txt
+++ b/internal/kv/rocksdb/cwrapper/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.14...3.17 FATAL_ERROR)
+cmake_minimum_required( VERSION 3.18 )
 project(wrapper)
 
 set(CMAKE_CXX_STANDARD 17)
diff --git a/internal/storage/cwrapper/CMakeLists.txt b/internal/storage/cwrapper/CMakeLists.txt
index c49896dda492beefe952dc42f2c33e309c9d8786..787b83f2c16d0b19b42703913f1d1caaeace8200 100644
--- a/internal/storage/cwrapper/CMakeLists.txt
+++ b/internal/storage/cwrapper/CMakeLists.txt
@@ -9,7 +9,7 @@
 # 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.
 
-cmake_minimum_required(VERSION 3.14...3.17 FATAL_ERROR)
+cmake_minimum_required( VERSION 3.18 )
 project(wrapper)
 
 set(CMAKE_CXX_STANDARD 17)
diff --git a/internal/util/dablooms/cwrapper/CMakeLists.txt b/internal/util/dablooms/cwrapper/CMakeLists.txt
index f9daa06f77c735f7d0c7ea384136d19bbca69d06..1dff0cd5f76ee7513efd735420dddf651d482f27 100644
--- a/internal/util/dablooms/cwrapper/CMakeLists.txt
+++ b/internal/util/dablooms/cwrapper/CMakeLists.txt
@@ -9,7 +9,7 @@
 # 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.
 
-cmake_minimum_required(VERSION 3.14...3.17 FATAL_ERROR)
+cmake_minimum_required( VERSION 3.18 )
 project(dablooms)
 
 set(CMAKE_CXX_STANDARD 17)
diff --git a/scripts/README.md b/scripts/README.md
index e62c862dc8ed95bf47e71ddda011a70f718eda93..8f9b9eaccd65058d518e4f2d8ecc79613a8ac273 100644
--- a/scripts/README.md
+++ b/scripts/README.md
@@ -5,7 +5,7 @@
 ```
     OS: Ubuntu 18.04
     go：1.15
-    cmake: >=3.16
+    cmake: >=3.18
     gcc： 7.5
 ```