diff --git a/src/doc/conf.py b/src/doc/conf.py
index 6e20f185726f799f7af8a47895252caded4f9f90..9e2924ae726e13aacd2f955ae1904b39ad73cbc3 100644
--- a/src/doc/conf.py
+++ b/src/doc/conf.py
@@ -27,9 +27,9 @@ copyright = '2020, IndiScale GmbH'
 author = 'Daniel Hornung'
 
 # The short X.Y version
-version = '0.X.Y'
+version = '0.4.0'
 # The full version, including alpha/beta/rc tags
-release = '0.x.y-beta-rc2'
+release = '0.4.0-rc'
 
 
 # -- General configuration ---------------------------------------------------