diff --git a/easy_thumbnails/files.py b/easy_thumbnails/files.py
index cc642b2a..64399087 100644
--- a/easy_thumbnails/files.py
+++ b/easy_thumbnails/files.py
@@ -735,7 +735,10 @@ def __getstate__(self):
         return state
 
     def __setstate__(self, state):
-        super().__setstate__(state)
+        if hasattr(super(), '__setstate__'):
+            super().__setstate__(state)
+        else:
+            self.__dict__.update(state)
         self.__dict__['alias_target'] = self