diff --git a/Cargo.toml b/Cargo.toml
index c8d6bdf..acf2655 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "proc-macro2-next"
-version = "1.0.0-rc3" # remember to update html_root_url
+version = "1.0.0-rc4" # remember to update html_root_url
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
diff --git a/src/lib.rs b/src/lib.rs
index 2ba3de2..222edb5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -85,7 +85,7 @@
 //! a different thread.
 
 // Proc-macro2 types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/proc-macro2-next/1.0.0-rc3")]
+#![doc(html_root_url = "https://docs.rs/proc-macro2-next/1.0.0-rc4")]
 #![cfg_attr(any(proc_macro_span, super_unstable), feature(proc_macro_span))]
 #![cfg_attr(super_unstable, feature(proc_macro_raw_ident, proc_macro_def_site))]