diff --git a/CHANGELOG.md b/CHANGELOG.md
index 25ba81e..b3678d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,16 @@ Versioned according to [Semantic Versioning](http://semver.org/).
 
 ## Unreleased
 
+## [0.4.0] - 2019-08-21
+
+Changed:
+
+  * :fire: `common.py` is now part of OCR-D/core's ocrd_utils, OCR-D/core#268, #49
+  * many fixes and improvements to crop, deskew, binarize
+  * proper handling of orientaton on page level
+  * updated requirements
+
+
 ## [0.3.0] - 2019-06-28
 
 Changed:
diff --git a/setup.py b/setup.py
index 5048ff3..eb0cb5f 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@
 
 setup(
     name='ocrd_tesserocr',
-    version='0.3.0',
+    version='0.4.0',
     description='Tesserocr bindings',
     long_description=codecs.open('README.rst', encoding='utf-8').read(),
     author='Konstantin Baierer, Kay-Michael Würzner, Robert Sachunsky',