diff --git a/README.md b/README.md
index 13d3217..d1f1c11 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 ![Terminal](https://github.com/panr/hugo-theme-terminal/blob/master/images/screenshot.png?raw=true)
 
 ### DEMO - https://hugo-terminal.now.sh/
+### ⚠️ The theme needs at least Hugo **Extended** v0.90.x.
 
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