diff --git a/app/package.json b/app/package.json
index 1261045..591e941 100644
--- a/app/package.json
+++ b/app/package.json
@@ -10,6 +10,7 @@
   "engines": {
     "node": ">=8.6"
   },
+  "browserslist": "> 0.5%, not dead, node 8.6",
   "dependencies": {
     "@zeit/next-bundle-analyzer": "^0.1.2",
     "apollo-cache-inmemory": "^1.3.11",
diff --git a/app/readme.md b/app/readme.md
index 611f811..3d90701 100644
--- a/app/readme.md
+++ b/app/readme.md
@@ -22,4 +22,4 @@ Ensure your editor supports:
 
 ## Support
 
-See `package.json` `engines`.
+See `package.json` `engines` and `browserslist`.