diff --git a/.yarnrc.yml b/.yarnrc.yml
index 0e9f67c019..2f5ba65084 100644
--- a/.yarnrc.yml
+++ b/.yarnrc.yml
@@ -43,7 +43,7 @@ packageExtensions:
   "@babel/preset-env@*":
     peerDependencies:
       core-js: "*"
-  "express@*":
+  "express@^4.0.0":
     dependencies:
       pug: "*"
   "@prettier/plugin-pug@*":