diff --git a/concurrency-overview/requirements.txt b/concurrency-overview/requirements.txt
index 3d5f357..28c088c 100644
--- a/concurrency-overview/requirements.txt
+++ b/concurrency-overview/requirements.txt
@@ -21,7 +21,7 @@ multio==0.2.3
 outcome==0.1.0
 pathlib2==2.3.2
 pluggy==0.7.1
-py==1.6.0
+py==1.10.0
 pycodestyle==2.3.1
 pyflakes==1.6.0
 pylint==2.1.1