diff --git a/jupyter_client/_version.py b/jupyter_client/_version.py
index b04acc3d6..506a62e9a 100644
--- a/jupyter_client/_version.py
+++ b/jupyter_client/_version.py
@@ -1,4 +1,4 @@
-version_info = (5, 2, 0)
+version_info = (5, 2, 1)
 __version__ = '.'.join(map(str, version_info))
 
 protocol_version_info = (5, 3)