diff --git a/requirements-dev.txt b/requirements-dev.txt
index 61f007c..3b8811c 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -9,7 +9,7 @@ atomicwrites==1.0
 more-itertools==4.0.0
 six==1.10.0
 attrs==17.4.0
-pluggy==0.6.0
+pluggy==1.4.0
 pytest==3.6.1