diff --git a/requirements-dev.txt b/requirements-dev.txt
index 4afab8f..6f64f00 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 flake8==3.3.0
 mccabe==0.6.1
 pycodestyle==2.3.1
-pyflakes==1.5.0
+pyflakes==2.1.0
 py==1.4.34
 pytest==3.1.2