diff --git a/requirements.txt b/requirements.txt
index ee13682..2f1539f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,4 @@ python-bugzilla==3.0.2
 jira==2.0.0
 pytest==6.2.3
 pytest-cov==2.11.1
-flake8==3.9.1
+flake8==4.0.1