diff --git a/serde/Cargo.toml b/serde/Cargo.toml
index 09a81c4f..a97b55b6 100644
--- a/serde/Cargo.toml
+++ b/serde/Cargo.toml
@@ -48,10 +48,6 @@ unstable = []
 # Provide impls for types in the Rust core allocation and collections library
 # including String, Box<T>, Vec<T>, and Cow<T>. This is a subset of std but may
 # be enabled without depending on all of std.
-#
-# Requires a dependency on the unstable core allocation library:
-#
-#    https://doc.rust-lang.org/alloc/
 alloc = []
 
 # Opt into impls for Rc<T> and Arc<T>. Serializing and deserializing these types