diff --git a/requirements-dev.txt b/requirements-dev.txt
index 79dff88..a60c7a6 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 -e .
-flake8==3.7.9
+flake8==3.8.1
 async-timeout==3.0.1
 pytest==5.4.2
 pytest-cov==2.8.1