diff --git a/README.md b/README.md
index 7d2570d..24e5f99 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
-# Safe{Core} Protocol Specification
+**:warning: This repository is not actively developed at the moment. :warning:**
 
+# Safe{Core} Protocol Specification
 
 See also:
 - [Protocol Whitepaper](./whitepaper.pdf)