diff --git a/docs/conf.py b/docs/conf.py
index 2b3da7eb3..14f16f045 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -50,7 +50,7 @@ copyright = u'2012-2014, ITsysCOM'
 # The short X.Y version.
 version = '0.9.1'
 # The full version, including alpha/beta/rc tags.
-release = '0.9.1rc3'
+release = '0.9.1rc4'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.