diff --git a/docs/conf.py b/docs/conf.py
index b149d567e35253d7a35dc1060a988d7cc9e5a856..99241285b658ec274c8ebb27fd05edbaf02d272e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -26,7 +26,7 @@ author = 'Nicolas Maillet'
 # The short X.Y version
 version = ''
 # The full version, including alpha/beta/rc tags
-release = '0.5.2'
+release = '0.5.3'
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/rpg/RapidPeptidesGenerator.py b/rpg/RapidPeptidesGenerator.py
index 454257691e22997bba451f525f33ea5d6bbfa6dd..5b7d927732b5f092851741a9b56f8724889cc4e2 100644
--- a/rpg/RapidPeptidesGenerator.py
+++ b/rpg/RapidPeptidesGenerator.py
@@ -38,10 +38,10 @@ necessary functions
 #Input format : a fasta/fastq file or a sequence
 #Output format : a fasta/csv/tsv file containing the digested sequences
 #@author: Nicolas Maillet
-#@version: 0.5.2α
+#@version: 0.5.3α
 #@note: Pwet
 
-__version_info__ = ('0', '5', '2')
+__version_info__ = ('0', '5', '3')
 __version__ = '.'.join(__version_info__)
 __revision_date__ = "2018-04-27"
 __author__ = "Nicolas Maillet"
diff --git a/setup.py b/setup.py
index a5e118458a384f6be5b80854d3ebfef20446197c..5ce7faaf9274854c13b1e1bb66e28a749b0409a6 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@ from setuptools import setup, find_packages
 
 _MAJOR = 0
 _MINOR = 5
-_MICRO = 2
+_MICRO = 3
 version = '%d.%d.%d' % (_MAJOR, _MINOR, _MICRO)
 release = '%d.%d' % (_MAJOR, _MINOR)