diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # gmnisrv
 
+**Notice**: this project is no longer maintained.
+
 gmnisrv is a simple [Gemini](https://gemini.circumlunar.space) protocol server.
 
 ## Installation