diff --git a/pyramid/pyramidsite/requirements.txt b/pyramid/pyramidsite/requirements.txt
index 2ebe000..21755ac 100644
--- a/pyramid/pyramidsite/requirements.txt
+++ b/pyramid/pyramidsite/requirements.txt
@@ -14,7 +14,7 @@ repoze.lru==0.7
 translationstring==1.4
 venusian==3.1.1
 waitress==3.0.2
-WebOb==1.8.6
+WebOb==1.8.9
 zope.deprecation==6.0
 zope.interface==5.1.0
 psycopg2==2.9.11