diff --git a/setup.py b/setup.py
index fa1fa06..77e8356 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
     'simplejson',
 ]
 tests_require=[
-    'pyfakefs==3.6.1',
+    'pyfakefs==5.3.5',
 ]