diff --git a/docs/config/all.py b/docs/config/all.py
index fd2d4ec1..655d6255 100644
--- a/docs/config/all.py
+++ b/docs/config/all.py
@@ -10,10 +10,10 @@
 #
 
 # The full version, including alpha/beta/rc tags.
-release = '2.x'
+release = '3.x'
 
 # The search index version
-search_version = 'authentication-2'
+search_version = 'authentication-3'
 
 # The marketing display name for the book.
 version_name = ''
@@ -24,7 +24,8 @@
 # Other versions that display in the version picker menu.
 version_list = [
     {'name': '1.x', 'number': '/authentication/1', 'title': '1.x'},
-    {'name': '2.x', 'number': '/authentication/2', 'title': '2.x', 'current': True},
+    {'name': '2.x', 'number': '/authentication/2', 'title': '2.x'},
+    {'name': '3.x', 'number': '/authentication/3', 'title': '3.x', 'current': True},
 ]
 
 # Languages available.
@@ -32,10 +33,10 @@
 
 # The GitHub branch name for this version of the docs
 # for edit links to point at.
-branch = '2.x'
+branch = '3.x'
 
 # Current version being built
-version = '2.x'
+version = '3.x'
 
 show_root_link = True