diff --git a/backend/dev.sh b/backend/dev.sh
index ec75e023..93cfcefb 100644
--- a/backend/dev.sh
+++ b/backend/dev.sh
@@ -1,27 +1,28 @@
 #!/bin/bash
 
-
 # This script is used to run the development environment.
 
-python3 -m pip install -i https://pypi.tuna.tsinghua.edu.cn/simple install -r requirements-dev.txt
+python3 -m venv venv
+
+./venv/bin/python3 -m pip install -i https://pypi.tuna.tsinghua.edu.cn/simple install -r requirements-dev.txt
 
 # install git-hooks for pre-commit before committing.
-pre-commit install
+./venv/bin/pre-commit install
 
 cd src || exit
 
 CONFIG_DIR="config"
 
 if [ ! -d "$CONFIG_DIR" ]; then
-    echo "The directory '$CONFIG_DIR' is missing."
-    mkdir config
+	echo "The directory '$CONFIG_DIR' is missing."
+	mkdir config
 fi
 
 VERSION_FILE="module/__version__.py"
 
 if [ ! -f "$VERSION_FILE" ]; then
-    echo "The file '$VERSION_FILE' is missing."
-    echo "VERSION='DEV_VERSION'" >> "$VERSION_FILE"
+	echo "The file '$VERSION_FILE' is missing."
+	echo "VERSION='DEV_VERSION'" >>"$VERSION_FILE"
 fi
 
-python3 main.py
\ No newline at end of file
+../venv/bin/python3 main.py