diff --git a/ganga/GangaCore/__init__.py b/ganga/GangaCore/__init__.py
index acf7e064d4..3367266b1f 100644
--- a/ganga/GangaCore/__init__.py
+++ b/ganga/GangaCore/__init__.py
@@ -28,8 +28,8 @@ def getLCGRootPath():
 
 # ------------------------------------------------
 # store Ganga version based on new git tag for this file
-_gangaVersion = '8.3.0'
-_development = True
+_gangaVersion = '8.3.1'
+_development = False
 
 # store a path to Ganga libraries
 _gangaPythonPath = os.path.dirname(os.path.dirname(__file__))
diff --git a/setup.py b/setup.py
index 1515b4e634..7ee1c162e3 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 
 file_path = os.path.dirname(os.path.realpath(__file__))
 
-_gangaVersion = '8.3.0'
+_gangaVersion = '8.3.1'
 
 def version():
     return _gangaVersion