diff --git a/requirements.txt b/requirements.txt
index 095bc8e..95bf35d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ more-itertools==4.1.0
 pluggy==0.6.0
 py==1.5.3
 pycodestyle==2.3.1
-pyflakes==1.6.0
+pyflakes==2.2.0
 pytest==3.5.0
 pytest-cov==2.5.1
 requests==2.18.4