diff --git a/tools/package_tools/README.md b/tools/package_tools/README.md
index a8f1b1d668..5876aa38d1 100644
--- a/tools/package_tools/README.md
+++ b/tools/package_tools/README.md
@@ -20,7 +20,9 @@ MMDeploy supports
 - Prepare MMDeploy dependencies
 
   Please follow the [build-on-Linux guide](../../docs/en/01-how-to-build/linux-x86_64.md) or [build-on-Windows guide](../../docs/zh_cn/01-how-to-build/linux-x86_64.md) to install dependencies of MMDeploy,
-  including OpenCV, ppl.cv, ONNX Runtime and TensorRT.
+  including PyTorch, MMCV, OpenCV, ppl.cv, ONNX Runtime and TensorRT.
+
+  Make sure the environment variables `pplcv_DIR`, `ONNXRUNTIME_DIR`, `TENSORRT_DIR`, `CUDNN_DIR` and `CUDA_TOOLKIT_ROOT_DIR` are exported.
 
 ## Run precompiled command
 
@@ -28,6 +30,7 @@ MMDeploy supports
 
   ```shell
   conda activate mmdeploy-3.6
+  pip install pyyaml
   cd the/root/path/of/mmdeploy
   python tools/package_tools/mmdeploy_builder.py tools/package_tools/configs/linux_x64.yaml .
   ```
@@ -38,6 +41,7 @@ MMDeploy supports
 
   ```shell
   conda activate mmdeploy-3.6
+  pip install pyyaml
   cd the/root/path/of/MMDeploy
   python tools/package_tools/mmdeploy_builder.py tools/package_tools/configs/windows_x64.yaml .
   ```
diff --git a/tools/package_tools/mmdeploy_builder.py b/tools/package_tools/mmdeploy_builder.py
index 9f1f974897..9f0fae519c 100644
--- a/tools/package_tools/mmdeploy_builder.py
+++ b/tools/package_tools/mmdeploy_builder.py
@@ -15,6 +15,7 @@
 from typing import Dict
 
 import yaml
+from packaging import version
 
 logger = logging.getLogger()
 logger.setLevel(logging.INFO)
@@ -330,7 +331,8 @@ def create_package(cfg: Dict, mmdeploy_dir: str):
                     break
 
             for python_version in python_versions:
-                python_major, _, python_minor = list(python_version)
+                _version = version.parse(python_version)
+                python_major, python_minor = _version.major, _version.minor
 
                 # create sdk python api wheel
                 sdk_python_package_dir = osp.join(build_dir,