diff --git a/aider/__init__.py b/aider/__init__.py
index 17a7ae828..9609f46db 100644
--- a/aider/__init__.py
+++ b/aider/__init__.py
@@ -1,6 +1,6 @@
 try:
     from aider.__version__ import __version__
 except Exception:
-    __version__ = "0.64.0"
+    __version__ = "0.64.1.dev"
 
 __all__ = [__version__]