diff --git a/.gitignore b/.gitignore
index 9ac7fdd..9b171ac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -81,9 +81,6 @@ target/
 profile_default/
 ipython_config.py
 
-# pyenv
-.python-version
-
 # pipenv
 #   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
 #   However, in case of collaboration, if having platform-specific dependencies or dependencies
diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..1635d0f
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.9.6