diff --git a/requirements_dev.txt b/requirements_dev.txt
index 3e10a1c1..b8143516 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,7 +4,7 @@ pydocstyle==1.1.1
 flake8==3.3.0
 flake8_docstrings==1.0.3
 planemo==0.40.0
-pytest==3.0.7
+pytest==3.1.1
 pytest-cov==2.4.0
 pytest-datadir==0.2.0
 pytest-flake8==0.8.1