diff --git a/requirements_dev.txt b/requirements_dev.txt
index 4ac8654..6c451f0 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -7,7 +7,7 @@ tox==3.7.0
 coverage==4.5.2
 Sphinx==1.8.4
 twine==1.12.1
-pytest==4.2.0
+pytest==4.2.1
 pytest-runner==4.2
 pytest-mock==1.10.1
 mock==2.0.0
diff --git a/requirements_test.txt b/requirements_test.txt
index e1a6e5f..673d536 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -1,4 +1,4 @@
-pytest==4.2.0
+pytest==4.2.1
 pytest-runner==4.2
 pytest-mock==1.10.1
 mock==2.0.0