diff --git a/docs/guide/ssr.md b/docs/guide/ssr.md
index 80a1145..c5d2d71 100644
--- a/docs/guide/ssr.md
+++ b/docs/guide/ssr.md
@@ -1,5 +1,7 @@
 # Server-Side Rendering
 
+**Requires Vue 2.6+**
+
 ## Vue CLI Plugin
 
 I made a plugin for [vue-cli](http://cli.vuejs.org) so you can transform your vue-apollo app into an isomorphic SSR app in literary two minutes! ✨🚀