diff --git a/library/CHANGELOG.txt b/library/CHANGELOG.txt
index be840d9..57ca0d0 100644
--- a/library/CHANGELOG.txt
+++ b/library/CHANGELOG.txt
@@ -1,3 +1,15 @@
+1.1.1
+-----
+
+* New: constants to clarify heater on/off states
+
+1.1.0
+-----
+
+* New: support for BME688 "high" gas resistance variant
+* New: set/get gas heater disable bit
+* Enhancement: fail with descriptive RuntimeError when chip is not detected
+
 1.0.5
 -----
 
diff --git a/library/README.md b/library/README.md
index 50168d1..899cb3e 100644
--- a/library/README.md
+++ b/library/README.md
@@ -56,6 +56,18 @@ In all cases you will have to enable the i2c bus.
 * Get help - http://forums.pimoroni.com/c/support
 
 # Changelog
+1.1.1
+-----
+
+* New: constants to clarify heater on/off states
+
+1.1.0
+-----
+
+* New: support for BME688 "high" gas resistance variant
+* New: set/get gas heater disable bit
+* Enhancement: fail with descriptive RuntimeError when chip is not detected
+
 1.0.5
 -----
 
diff --git a/library/bme680/__init__.py b/library/bme680/__init__.py
index 9037d17..cb2fa6f 100644
--- a/library/bme680/__init__.py
+++ b/library/bme680/__init__.py
@@ -5,7 +5,7 @@
 import math
 import time
 
-__version__ = '1.0.5'
+__version__ = '1.1.1'
 
 
 # Export constants to global namespace
diff --git a/library/setup.cfg b/library/setup.cfg
index 994ad8f..a2efae0 100644
--- a/library/setup.cfg
+++ b/library/setup.cfg
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 [metadata]
 name = bme680
-version = 1.0.5
+version = 1.1.1
 author = Philip Howard
 author_email = phil@pimoroni.com
 description = Python library for the BME680 temperature, humidity and gas sensor