diff --git a/requirements_dev.txt b/requirements_dev.txt
index 638fb1c..39a0c5e 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,4 @@
-pip==9.0.1
+pip==18.1
 bumpversion==0.5.3
 wheel==0.29.0
 watchdog==0.8.3