diff --git a/requirements.txt b/requirements.txt
index aef0a3f..c1d10f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ requests==2.24.0
 click==7.1.2
 simplejson==3.17.0
 mock==3.0.5
-flake8==3.8.1
+flake8==3.8.3
 flake8-coding==1.3.2
 flake8-commas==2.0.0
 flake8-comprehensions==1.4.1 # pyup: <2.0