diff --git a/pettingzoo/__init__.py b/pettingzoo/__init__.py
index 11690c46e..e7623f7a1 100644
--- a/pettingzoo/__init__.py
+++ b/pettingzoo/__init__.py
@@ -13,4 +13,4 @@
 
 os.environ["PYGAME_HIDE_SUPPORT_PROMPT"] = "hide"
 
-__version__ = "1.19.0"
+__version__ = "1.20.0"