diff --git a/jedi/cache.py b/jedi/cache.py
index bf96671f..d8306bcc 100644
--- a/jedi/cache.py
+++ b/jedi/cache.py
@@ -219,7 +219,7 @@ def save_module(path, name, parser, pickling=True):
 
 class _ModulePickling(object):
 
-    version = 2
+    version = 3
     """
     Version number (integer) for file system cache.