diff --git a/requirements_dev.txt b/requirements_dev.txt
index b4b2e5f..d7ad18d 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,5 +8,5 @@ coverage==4.2
 Sphinx==1.4.8
 cryptography==1.5.3
 PyYAML==3.12
-pytest==3.0.3
+pytest==3.0.4
 twine==1.8.1