diff --git a/HISTORY.rst b/HISTORY.rst
index ce24f0bd0abf91ca081cf89a3f7b23b32c0fa803..2693cc1dcece3cdde5ffca1b1aca9ac5acc8c5d6 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -6,7 +6,7 @@ History
 .. to_doc
 
 ---------------------
-0.9.1.dev0
+0.9.1 (2019-05-01)
 ---------------------
 
 * Fix duplicate inputs being a problem when staging Galaxy files.
diff --git a/pulsar/__init__.py b/pulsar/__init__.py
index cbd5d4b72501060a2dc95216b28abeb8becedb24..fd3197853b8d0c4e02e720a0fff39d87db50f44c 100644
--- a/pulsar/__init__.py
+++ b/pulsar/__init__.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-__version__ = '0.9.1.dev0'
+__version__ = '0.9.1'
 
 PROJECT_NAME = "pulsar"
 PROJECT_OWNER = PROJECT_USERAME = "galaxyproject"