diff --git a/geniza/__init__.py b/geniza/__init__.py
index bdefd609b..4fbc09881 100644
--- a/geniza/__init__.py
+++ b/geniza/__init__.py
@@ -1,4 +1,4 @@
-__version_info__ = (4, 19, 0, None)
+__version_info__ = (4, 20, 0, "dev")
 
 
 # Dot-connect all but the last. Last is dash-connected if not None.