diff --git a/requirements_dev.txt b/requirements_dev.txt
index 1438dba..209df3c 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,7 +8,7 @@ cached-property==1.3.1
 click==6.7 # via pip-tools
 first==2.0.1              # via pip-tools
 lxml==4.0.0
-pip-tools==1.9.0
+pip-tools==1.10.0
 requests==2.18.4
 six==1.11.0               # via pip-tools
 slumber==0.7.1