diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 11745d6e..c2e4bb77 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -5,7 +5,7 @@ Versions are year-based with a strict backward compatibility policy.
 The third digit is only for regressions.
 
 
-21.3.0 (UNRELEASED)
+21.3.0 (2021-11-20)
 -------------------
 
 
diff --git a/src/structlog/__init__.py b/src/structlog/__init__.py
index e940699f..6b9c3268 100644
--- a/src/structlog/__init__.py
+++ b/src/structlog/__init__.py
@@ -42,7 +42,7 @@
     contextvars = None  # type: ignore
 
 
-__version__ = "21.3.0.dev0"
+__version__ = "21.3.0"
 
 __title__ = "structlog"
 __description__ = __doc__.strip()