diff --git a/README.md b/README.md
index 6636c22..0ffceb5 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,9 @@
 # pkgu
 
 Find the out-dated packages installed by the Pip tool and update them. Inspired by 👉[depu(Go)](https://github.com/kevwan/depu).
-However, `pkgu` supports full and partial updates, which is more convenient and flexible.
+However, `pkgu` supports full and partial updates, which is more convenient and flexible. It also supports cross-platform(Windows, linux, macos).
+
+👉 However, only python3.10 and above are available now.
 
 ## Usage
 
@@ -21,7 +23,7 @@ and then, run `pkgu.py` script.
 python3 pkgu.py
 ```
 
-- Use it through pip
+- Use it through pip - ***Highly Recommended***
 
 ```bash
 pip3 install pkgu
diff --git a/pkgu.py b/pkgu.py
index 7915e33..24621de 100644
--- a/pkgu.py
+++ b/pkgu.py
@@ -377,7 +377,9 @@ def base_option_single(
     ) -> str:
         questions = [self.single(name, message=title, choices=options)]
         answers = IQ_Prompt(questions)
-        return answers.get(name)
+
+        if answers:
+            return answers.get(name)
 
     def ifUpgradeModules(self) -> str:
         name = "single"
@@ -400,9 +402,10 @@ def updateOneOfPackages(
         options = [f"{package[0]}@{package[1]}=>{package[2]}" for package in packages]
         _name = "multiple"
         terminal_package_option = [self.mutiple(_name, message=title, choices=options)]
-
         answers = IQ_Prompt(terminal_package_option)
-        return answers.get(_name)
+
+        if answers:
+            return answers.get(_name)
 
 
 class UserOptions(BaseOptions):
diff --git a/pyproject.toml b/pyproject.toml
index d06e4b1..5b24d49 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pkgu"
-version = "0.0.24"
+version = "0.0.25"
 description = "Find the out-dated packages installed by the pip tool and update them."
 authors = ["Abeautifulsnow <lnrunstone.0727@gmail.com>"]