diff --git a/tox.ini b/tox.ini
index 3e7d23315..e84096794 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,7 +22,7 @@ deps =
     pytest-mock==0.7.0
     pytest-html==1.6
     hypothesis==1.11.0
-    hypothesis-pytest==0.18.0
+    hypothesis-pytest==0.18.1
     coverage==3.7.1
     pytest-cov==2.1.0
     beautifulsoup4==4.4.0