diff --git a/docs/about/release-notes.md b/docs/about/release-notes.md
index 08e953ab..9fecda5c 100644
--- a/docs/about/release-notes.md
+++ b/docs/about/release-notes.md
@@ -21,7 +21,7 @@ The current and past members of the MkDocs team.
 * [@d0ugal](https://github.com/d0ugal/)
 * [@waylan](https://github.com/waylan/)
 
-## Version 1.2.1 (Under Development)
+## Version 1.2.1 (2021-06-09)
 
 * Bugfix: Ensure 'gh-deploy' always pushes.
 
diff --git a/mkdocs/__init__.py b/mkdocs/__init__.py
index b9e0aa8b..2aa122cf 100644
--- a/mkdocs/__init__.py
+++ b/mkdocs/__init__.py
@@ -2,4 +2,4 @@
 
 
 # For acceptable version formats, see https://www.python.org/dev/peps/pep-0440/
-__version__ = '1.2.1.dev1'
+__version__ = '1.2.1'