diff --git a/ocrd_browser/__init__.py b/ocrd_browser/__init__.py
index 45869b6..ac87279 100644
--- a/ocrd_browser/__init__.py
+++ b/ocrd_browser/__init__.py
@@ -1 +1 @@
-__version__ = '0.5.2'
+__version__ = '0.5.2.1'