diff --git a/tox.ini b/tox.ini
index 87e31dd2c..057222c83 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,7 +19,7 @@ deps =
     decorator==4.0.6
     Flask==0.10.1
     glob2==0.4.1
-    httpbin==0.4.0
+    httpbin==0.4.1
     hypothesis==2.0.0
     itsdangerous==0.24
     Mako==1.0.3