diff --git a/shrinkwrap.yaml b/shrinkwrap.yaml
index e2839aa..52904df 100644
--- a/shrinkwrap.yaml
+++ b/shrinkwrap.yaml
@@ -362,7 +362,7 @@ packages:
     resolution:
       integrity: sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=
 registry: 'https://registry.npmjs.org/'
-shrinkwrapMinorVersion: 5
+shrinkwrapMinorVersion: 6
 shrinkwrapVersion: 3
 specifiers:
   express: ^4.16.3