diff --git a/requirements_dev.txt b/requirements_dev.txt
index 692ade4..36a6442 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,6 +1,6 @@
 bump2version==0.5.10
-coverage==4.5.3
-flake8==3.7.7
+coverage==4.5.4
+flake8==3.7.8
 mock==3.0.5
 pip==19.1.1
 pytest==4.5.0 # pyup: <5.0 # for Python 2.7 support