diff --git a/README.md b/README.md
index ab9f6de..cd13402 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,8 @@ Looking for plugins? Browse [git.io/awsm.fish](https://git.io/awesome.fish) or [
 curl -sL https://git.io/fisher | source && fisher install jorgebucaran/fisher
 ```
 
+> #### ⚠️ [Fish ≥ 3.0 required](https://fishshell.com/docs/current/relnotes.html#fish-3-0-0-released-december-28-2018)
+
 > #### 👋 [Upgrading from Fisher 3.x or 2.x?](https://github.com/jorgebucaran/fisher/issues/652)
 
 ## Quickstart