diff --git a/requirements_dev.txt b/requirements_dev.txt
index 6f904af..a8147fd 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,5 +8,5 @@ coverage==4.5.1
 Sphinx==1.7.5
 cryptography==2.2.2
 PyYAML==3.13
-pytest==3.6.3
+pytest==4.3.0
 click==6.7