diff --git a/requirements.txt b/requirements.txt
index 2211033..f0d6679 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ certifi==2018.10.15
 chardet==3.0.4
 idna==2.7
 more-itertools==4.3.0
-pluggy==0.8.0
+pluggy==0.13.1
 py==1.7.0
 PyJWT==1.6.4
 pytest==3.9.3