diff --git a/docs/source/conf.py b/docs/source/conf.py
index f51033a937..a1648a9906 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -14,12 +14,12 @@
 # -- General configuration ------------------------------------------------
 
 # Build documentation for the following tags and branches
-TAGS = []
-BRANCHES = ['main']
+TAGS = ['v0.9.0']
+BRANCHES = ['main', 'v0.9.0']
 # Set the latest version.
-LATEST_VERSION = 'main'
+LATEST_VERSION = 'v0.9.0'
 # Set which versions are not released yet.
-UNSTABLE_VERSIONS = []
+UNSTABLE_VERSIONS = ['v0.9.0']
 # Set which versions are deprecated
 DEPRECATED_VERSIONS = []