diff --git a/tests/requirements.txt b/tests/requirements.txt
index 3b26597..cfacc3f 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -3,7 +3,7 @@ flake8==3.4.1
 isort==4.2.15
 mypy==0.521
 pycodestyle==2.3.1
-pyflakes==1.5.0
+pyflakes==1.6.0
 pytest==3.2.1
 pytest-cov==2.5.1
 pytest-isort==0.1.0