diff --git a/src/libsemver/lib.rs b/src/libsemver/lib.rs
index 41f7aa5012d..3cc5189c024 100644
--- a/src/libsemver/lib.rs
+++ b/src/libsemver/lib.rs
@@ -29,7 +29,8 @@
 //! `0.8.1-rc.3.0+20130922.linux`.
 
 #![crate_name = "semver"]
-#![experimental]
+#![deprecated = "This is now a cargo package located at: \
+                 https://github.com/rust-lang/semver"]
 #![crate_type = "rlib"]
 #![crate_type = "dylib"]
 #![license = "MIT/ASL2"]