diff --git a/requirements.txt b/requirements.txt
index e0e2c7d..7c67fc8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 mock==2.0.0
 pylint==1.9.3
-pytest==3.10.1
+pytest==4.0.0
 snapshottest==0.5.0