diff --git a/examples/cmd.py b/examples/cmd.py
index 317cee0..c80d71a 100755
--- a/examples/cmd.py
+++ b/examples/cmd.py
@@ -16,6 +16,7 @@
     PMTK225,<1 or 0> = Enable/Disable PPS
 """
 
+
 def timeout(err=None, timeout=5.0):
     if err is None:
         err = "Timed out!"
diff --git a/examples/pps.py b/examples/pps.py
index 53f586b..a679c60 100755
--- a/examples/pps.py
+++ b/examples/pps.py
@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-import time
 import sys
 
 from pa1010d import PA1010D
diff --git a/library/CHANGELOG.txt b/library/CHANGELOG.txt
index 0b3c185..7b7f2a1 100644
--- a/library/CHANGELOG.txt
+++ b/library/CHANGELOG.txt
@@ -1,3 +1,8 @@
+0.0.4
+-----
+
+* Fix read/write for Python 3.9
+
 0.0.3
 -----
 
diff --git a/library/pa1010d/__init__.py b/library/pa1010d/__init__.py
index b41e7a3..a3c0110 100644
--- a/library/pa1010d/__init__.py
+++ b/library/pa1010d/__init__.py
@@ -5,7 +5,7 @@
 import pynmea2
 
 
-__version__ = '0.0.3'
+__version__ = '0.0.4'
 
 PA1010D_ADDR = 0x10
 
diff --git a/library/setup.cfg b/library/setup.cfg
index 4305fc6..9ac11ec 100644
--- a/library/setup.cfg
+++ b/library/setup.cfg
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 [metadata]
 name = pa1010d
-version = 0.0.3
+version = 0.0.4
 author = Philip Howard
 author_email = phil@pimoroni.com
 description = Python library for the PA1010D i2c GPS module