diff --git a/CHANGES.rst b/CHANGES.rst
index efa6af18b..ccb2e244f 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,8 +1,8 @@
 Release History
 ---------------
 
-Release 0.5.2 (in development)
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Release 0.5.2 (2021-02-24)
+~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 New Features:
 
@@ -29,6 +29,9 @@ Fixed:
   of the signature, no matter how wide the signature is.
 * Incorrect/useless warnings that popped up with release 0.5.1.
 
+Part of the work included in this release was kindly sponsored by `Joby
+Aviation <https://www.jobyaviation.com>`_.
+
 
 Release 0.5.1 (2021-02-19)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/src/rinoh/__init__.py b/src/rinoh/__init__.py
index af9887911..583d71e7a 100644
--- a/src/rinoh/__init__.py
+++ b/src/rinoh/__init__.py
@@ -35,7 +35,7 @@
 
 
 __version__ = importlib_metadata.version('rinohtype')
-__release_date__ = 'in development'
+__release_date__ = '2021-02-24'
 
 
 from . import resource