diff --git a/doc/COMPILE.md b/doc/COMPILE.md
index d63c58b4065b5031d98f42f4a8525add1d3fcf7b..1836f4fe089f13e2eb2c9485f40d50ec668e4671 100644
--- a/doc/COMPILE.md
+++ b/doc/COMPILE.md
@@ -23,7 +23,7 @@
 |           libXext            |                            1.3.3                             |
 |            libSM             |                            1.2.2                             |
 |          libXrender          |                            0.9.10                            |
-|          python-whl          | numpy>=1.12, <=1.16.4<br/>wheel>=0.34.0, <0.35.0<br/>setuptools>=44.1.0<br/>opencv-python>=4.2.0.32, <4.4.0.40<br/>google>=2.0.3<br/>protobuf>=3.12.2<br/>grpcio-tools>=1.28.1<br/>grpcio>=1.28.1<br/>func-timeout>=4.3.5<br/>pyyaml>=1.3.0<br/>sentencepiece==0.1.92<br>flask>=1.1.2<br>ujson>=2.0.3 |
+|          python-whl          | numpy>=1.12, <=1.16.4<br/>wheel>=0.34.0, <0.35.0<br/>setuptools>=44.1.0<br/>opencv-python==4.2.0.32<br/>google>=2.0.3<br/>protobuf>=3.12.2<br/>grpcio-tools>=1.28.1<br/>grpcio>=1.28.1<br/>func-timeout>=4.3.5<br/>pyyaml>=1.3.0<br/>sentencepiece==0.1.92<br>flask>=1.1.2<br>ujson>=2.0.3 |
 
 It is recommended to use Docker for compilation. We have prepared the Paddle Serving compilation environment for you, see [this document](DOCKER_IMAGES.md).
 
diff --git a/doc/COMPILE_CN.md b/doc/COMPILE_CN.md
index bc45877a8a3105d2c12805817caafee1781a9122..1235653e69161ba8f71d3f8098a1860dca4d357d 100644
--- a/doc/COMPILE_CN.md
+++ b/doc/COMPILE_CN.md
@@ -23,7 +23,7 @@
 |           libXext            |                            1.3.3                             |
 |            libSM             |                            1.2.2                             |
 |          libXrender          |                            0.9.10                            |
-|          python-whl          | numpy>=1.12, <=1.16.4<br/>wheel>=0.34.0, <0.35.0<br/>setuptools>=44.1.0<br/>opencv-python>=4.2.0.32, <4.4.0.40<br/>google>=2.0.3<br/>protobuf>=3.12.2<br/>grpcio-tools>=1.28.1<br/>grpcio>=1.28.1<br/>func-timeout>=4.3.5<br/>pyyaml>=1.3.0<br/>sentencepiece==0.1.92<br/>flask>=1.1.2<br/>ujson>=2.0.3 |
+|          python-whl          | numpy>=1.12, <=1.16.4<br/>wheel>=0.34.0, <0.35.0<br/>setuptools>=44.1.0<br/>opencv-python==4.2.0.32<br/>google>=2.0.3<br/>protobuf>=3.12.2<br/>grpcio-tools>=1.28.1<br/>grpcio>=1.28.1<br/>func-timeout>=4.3.5<br/>pyyaml>=1.3.0<br/>sentencepiece==0.1.92<br/>flask>=1.1.2<br/>ujson>=2.0.3 |
 
 推荐使用Docker编译，我们已经为您准备好了Paddle Serving编译环境，详见[该文档](DOCKER_IMAGES_CN.md)。
 
diff --git a/python/requirements.txt b/python/requirements.txt
index da58175ac9f437b04fe69612a4f27d91f9946487..4b9abc743818cef27ce25539ba6b134a8f85e4e8 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -1,7 +1,7 @@
 numpy>=1.12, <=1.16.4 ; python_version<"3.5"
 wheel>=0.34.0, <0.35.0
 setuptools>=44.1.0
-opencv-python>=4.2.0.32, <4.4.0.40
+opencv-python==4.2.0.32
 google>=2.0.3
 protobuf>=3.12.2
 grpcio-tools>=1.28.1