diff --git a/README.md b/README.md
index 1faae0629364acfb36471392b6ec1fb4e03db2f7..7670978864f2703e7a523db5c9af46baa6a68316 100644
--- a/README.md
+++ b/README.md
@@ -70,8 +70,8 @@ python -m pip install --upgrade -r requirements.txt
 Once the user confirms the above OS constraint, OpenFermion can be installed with the following command. These packages are used for quantum chemistry calculations and could be potentially used in the VQE tutorial.
 
 ```bash
-pip install openfermion
-pip install openfermionpyscf
+pip install openfermion==0.11.0
+pip install openfermionpyscf==0.4
 ```
 
 ### Run programs
diff --git a/README_CN.md b/README_CN.md
index a42a09454478d7aef3a092087ea7452e5584979e..f1706ebc4606434c5d9f5ba0a1b7b7e2dfe2f0c1 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -70,8 +70,8 @@ python -m pip install --upgrade -r requirements.txt
 VQE中调用 openfermion 读取分子 xyz 文件并计算，因此需要安装 openfermion 和 openfermionpyscf。
 
 ```bash
-pip install openfermion
-pip install openfermionpyscf
+pip install openfermion==0.11.0
+pip install openfermionpyscf==0.4
 ```
 
 ### 运行
diff --git a/tutorial/VQE/VQE_CN.ipynb b/tutorial/VQE/VQE_CN.ipynb
index 493731e2751f9c327b4536cbc9db888bbecb23ce..6d2ea45d779950a34ec4c39d7b9a838ad8b31d8a 100644
--- a/tutorial/VQE/VQE_CN.ipynb
+++ b/tutorial/VQE/VQE_CN.ipynb
@@ -182,7 +182,7 @@
    },
    "outputs": [],
    "source": [
-    "!pip install openfermion\n",
+    "!pip install openfermion==0.11.0\n",
     "clear_output()"
    ]
   },
@@ -197,7 +197,7 @@
    },
    "outputs": [],
    "source": [
-    "!pip install openfermionpyscf\n",
+    "!pip install openfermionpyscf==0.4\n",
     "clear_output()"
    ]
   },
@@ -1938,7 +1938,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.10"
+   "version": "3.8.3"
   },
   "toc": {
    "base_numbering": 1,
diff --git a/tutorial/VQE/VQE_EN.ipynb b/tutorial/VQE/VQE_EN.ipynb
index abe6aadb36a7c6d3d3f7b014a36ba25355073409..8d29ac19fd5e1d0655f775d81977efba57cfdf6e 100644
--- a/tutorial/VQE/VQE_EN.ipynb
+++ b/tutorial/VQE/VQE_EN.ipynb
@@ -173,7 +173,7 @@
    },
    "outputs": [],
    "source": [
-    "!pip install openfermion\n",
+    "!pip install openfermion==0.11.0\n",
     "clear_output()"
    ]
   },
@@ -188,7 +188,7 @@
    },
    "outputs": [],
    "source": [
-    "!pip install openfermionpyscf\n",
+    "!pip install openfermionpyscf==0.4\n",
     "clear_output()"
    ]
   },
@@ -1868,7 +1868,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.10"
+   "version": "3.8.3"
   },
   "toc": {
    "base_numbering": 1,