diff --git a/requirements_dev.txt b/requirements_dev.txt
index 5340920..dde753d 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,5 +1,5 @@
 pip==9.0.1
-pip-tools==1.10.1
+pip-tools==1.11.0
 bumpversion==0.5.3
 wheel==0.30.0
 watchdog==0.8.3