diff --git a/CHANGES.txt b/CHANGES.txt
index b91eabbd1..74f3b9fed 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,7 @@
+2.5.6
+
+ * Fixed a bug where deepTools in python3 can't handle npz file labels created under python 2.
+
 2.5.5
 
  * Updated blacklist handling such that an error is thrown on overlapping regions.
diff --git a/deeptools/_version.py b/deeptools/_version.py
index f952ec860..62ad489af 100644
--- a/deeptools/_version.py
+++ b/deeptools/_version.py
@@ -2,4 +2,4 @@
 # This file is originally generated from Git information by running 'setup.py
 # version'. Distribution tarballs contain a pre-generated copy of this file.
 
-__version__ = '2.5.5'
+__version__ = '2.5.6'
diff --git a/galaxy/wrapper/deepTools_macros.xml b/galaxy/wrapper/deepTools_macros.xml
index 53f939112..79c0e1dd2 100644
--- a/galaxy/wrapper/deepTools_macros.xml
+++ b/galaxy/wrapper/deepTools_macros.xml
@@ -1,10 +1,10 @@
 <macros>
 
     <token name="@THREADS@">--numberOfProcessors "\${GALAXY_SLOTS:-4}"</token>
-    <token name="@WRAPPER_VERSION@">2.5.5</token>
+    <token name="@WRAPPER_VERSION@">2.5.6</token>
     <xml name="requirements">
         <requirements>
-            <requirement type="package" version="2.5.5">deeptools</requirement>
+            <requirement type="package" version="2.5.6">deeptools</requirement>
             <yield />
         </requirements>
         <expand macro="stdio" />