diff --git a/requirements-dev.txt b/requirements-dev.txt
index 9e042a0..656ca3b 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 -e .
 flake8==3.5.0
-pytest==3.6.1
+pytest==3.6.4
 pytest-cov==2.5.1
 pytest-mock==1.10.0
 coverage==4.5.1