diff --git a/requirements_dev.txt b/requirements_dev.txt
index b2d7b6d..e20d475 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -9,7 +9,7 @@ flake8==3.9.2
 incuna-test-utils==8.0.0
 pip==21.0.1
 psycopg2-binary==2.8.6
-pyflakes==2.3.1
+pyflakes==2.4.0
 pycodestyle==2.7.0
 setuptools==57.0.0
 twine==3.4.1