diff --git a/package.json b/package.json
index 1f9ac4771431f664eb2fc71c08dff2d39956b158..01931fffeeae169ab7dfb3347a8f27dc62c4d0c8 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,6 @@
       "postinstall": "cd opentech/static_src && yarn install && npm build:prod"
     },
     "engines": {
-    "node": ">=7.0.0"
+    "yarn": ">=1.7.0"
     }
 }