diff --git a/requirements_dev.txt b/requirements_dev.txt
index 90419df..9e5f61b 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,5 +8,5 @@ coverage==4.4
 Sphinx==1.6.3
 cryptography==1.9
 PyYAML==3.12
-pytest==3.2.3
+pytest==4.1.1
 funcparserlib==0.3.6