diff --git a/requirements_dev.txt b/requirements_dev.txt
index 6d1e638..3c4288b 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,7 +1,7 @@
 pip==21.2.4
 bump2version==1.0.1
 wheel==0.37.0
-flake8==3.9.2
+flake8==5.0.1
 tox==3.24.4
 coverage==6.0
 Sphinx==4.2.0