diff --git a/.vscode/settings.json b/.vscode/settings.json
index 85f5c78d..88ebee0a 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -8,6 +8,7 @@
         "METH",
         "NPROCESSORS",
         "Reddit",
+        "UUIDs",
         "Virtualenv",
         "XDECREF",
         "acceler",
diff --git a/README.md b/README.md
index b7b2d44e..d7f375eb 100644
--- a/README.md
+++ b/README.md
@@ -208,11 +208,11 @@ Raises:
 
 - `ConvertError `-- when `parso.ParserSyntaxError` raised
 
-#### `ConvertError` -- `f2format` internal exception
+#### Internal exceptions
 
 ```python
 class ConvertError(SyntaxError):
-    pass
+    """Parso syntax error."""
 ```
 
 ### Codec
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 9e9ca9aa..b6413142 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,6 +1,6 @@
 # basic info
 FROM library/ubuntu
-LABEL version 0.8.4
+LABEL version 0.8.5
 LABEL description "Ubuntu Environment for F2FORMAT"
 
 # prepare environment
diff --git a/f2format.py b/f2format.py
index ec15528c..dbc42183 100644
--- a/f2format.py
+++ b/f2format.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+"""Back-port compiler for Python 3.6 f-string literals."""
 
 import argparse
 import glob
@@ -31,7 +32,7 @@
     del multiprocessing
 
 # version string
-__version__ = '0.8.4'
+__version__ = '0.8.5'
 
 # from configparser
 BOOLEAN_STATES = {'1': True, '0': False,
diff --git a/setup.py b/setup.py
index df6fd172..97a6d32d 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@
     long_desc = file.read()
 
 # version string
-__version__ = '0.8.4'
+__version__ = '0.8.5'
 
 # set-up script for pip distribution
 setup(
diff --git a/share/f2format.1 b/share/f2format.1
index 5cac95a8..087daef8 100644
--- a/share/f2format.1
+++ b/share/f2format.1
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH F2FORMAT 1 "November 09, 2019" "v0.8.4" ""
+.TH F2FORMAT 1 "November 27, 2019" "v0.8.5" ""
 .SH NAME
 f2format \- back-port compiler for Python 3.6 f-string literals
 .
diff --git a/share/f2format.rst b/share/f2format.rst
index 7a2cf0e9..697d5e95 100644
--- a/share/f2format.rst
+++ b/share/f2format.rst
@@ -6,8 +6,8 @@ f2format
 back-port compiler for Python 3.6 f-string literals
 ---------------------------------------------------
 
-:Version: v0.8.4
-:Date: November 09, 2019
+:Version: v0.8.5
+:Date: November 27, 2019
 :Manual section: 1
 :Author:
     Jarry Shaw, a newbie programmer, is the author, owner and maintainer