diff --git a/requirements_dev.txt b/requirements_dev.txt
index 56ddbc7..c3e34ad 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -7,7 +7,7 @@ tox==2.4.1
 coverage==4.2
 Sphinx==1.4.8
 PyYAML==3.12
-pytest==3.0.3
+pytest==3.4.1
 pytest-cov==2.4.0
 check-manifest==0.34
 docutils==0.12