diff --git a/src/pillow_avif/__init__.py b/src/pillow_avif/__init__.py
index 05458e8..6435d69 100644
--- a/src/pillow_avif/__init__.py
+++ b/src/pillow_avif/__init__.py
@@ -2,4 +2,4 @@
 
 
 __all__ = ["AvifImagePlugin"]
-__version__ = "1.3.1"
+__version__ = "1.4.0"