diff --git a/parso/cache.py b/parso/cache.py
index 30963bd..d81a46e 100644
--- a/parso/cache.py
+++ b/parso/cache.py
@@ -33,7 +33,7 @@ makes Jedi use ~500mb of memory. Since we might want a bit more than those few
 libraries, we just increase it a bit.
 """
 
-_PICKLE_VERSION = 32
+_PICKLE_VERSION = 33
 """
 Version number (integer) for file system cache.