diff --git a/requirements-dev.txt b/requirements-dev.txt
index 979be5ef2e11e..fdb627d96207d 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -9,6 +9,7 @@ flask-cors==3.0.3
 ipdb==0.11
 mysqlclient==1.3.12
 psycopg2-binary==2.7.5
+pycodestyle==2.3.1
 pylint==1.9.2
 redis==2.10.6
 statsd==3.2.2