diff --git a/docs/conf.py b/docs/conf.py
index 4e60b0ff66a82..a7c5c72d132e2 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -61,9 +61,9 @@
 last_commit = str(repo.head.commit)[:6]
 
 # The short X.Y version.
-version = u'1.3.0-' + last_commit
+version = u'1.4.0-' + last_commit
 # The full version, including alpha/beta/rc tags.
-release = u'1.3.0-' + last_commit
+release = u'1.4.0-' + last_commit
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.