diff --git a/requirements.txt b/requirements.txt
index 4ee2229..a32b2fe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,4 +14,4 @@ waitress==0.8.10
 WebOb==1.4.1
 wheel==0.24.0
 zope.deprecation==4.1.2
-zope.interface==4.4.3
+zope.interface==5.4.0