diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3ba8534..6aa4259 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 bumpversion==0.5.3
 h5py==2.7.1
 numpy==1.13.3
-pytest==3.3.0
+pytest==3.3.1
 pytest-pep8==1.0.6
 pytest-cov==2.5.1
 coveralls==1.2.0
\ No newline at end of file