diff --git a/examples/flask/requirements.txt b/examples/flask/requirements.txt
index 4385a34..71eef23 100644
--- a/examples/flask/requirements.txt
+++ b/examples/flask/requirements.txt
@@ -19,7 +19,7 @@ mccabe==0.6.1
 more-itertools==4.2.0
 pagseguro==0.3.2
 pluggy==0.6.0
-py==1.5.4
+py==1.10.0
 pylint==2.0.0
 pytest==3.6.3
 pytest-cov==2.5.1