diff --git a/jedi/parser/utils.py b/jedi/parser/utils.py
index ad87e0d5..77287eaa 100644
--- a/jedi/parser/utils.py
+++ b/jedi/parser/utils.py
@@ -86,7 +86,7 @@ def save_parser(path, parser, pickling=True):
 
 
 class ParserPickling(object):
-    version = 26
+    version = 27
     """
     Version number (integer) for file system cache.