diff --git a/setup.cfg b/setup.cfg
index 2e9eb6ae..b8782110 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -40,7 +40,7 @@ build =
     wheel==0.34.2
 
 testing =
-    flake8==3.7.9
+    flake8==3.8.1
     flake8-bugbear>=19.8.0
     flake8-commas==2.0.0
     flake8-docstrings==1.5.0