diff --git a/requirements-dev.txt b/requirements-dev.txt
index f659bab..2e66b11 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -20,7 +20,7 @@ pep8-naming==0.4.1
 pep8==1.7.0               # via flake8
 py==1.4.32 # via pytest
 pyenchant==1.6.8
-pyflakes==1.0.0           # via flake8
+pyflakes==1.4.0 # via flake8
 pygments==2.1.3 # via sphinx
 pytest-django==3.1.2
 pytest==3.0.5