diff --git a/requirements.txt b/requirements.txt
index 6c01471..6adca06 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ venusian==3.0.0
     # via pyramid
 waitress==2.1.2
     # via -r requirements.in
-webob==1.8.7
+webob==1.8.11
     # via pyramid
 zope-deprecation==5.0
     # via pyramid