diff --git a/requirements_for_test.txt b/requirements_for_test.txt
index 2c7fd49be..394c127ec 100644
--- a/requirements_for_test.txt
+++ b/requirements_for_test.txt
@@ -8,6 +8,6 @@ pytest-xdist==1.26.1
 coveralls==1.5.1
 beautifulsoup4==4.7.1
 freezegun==0.3.11
-flake8==3.7.1
+flake8==3.7.3
 flake8-print==3.1.0
 requests-mock==1.5.2