diff --git a/README.md b/README.md
index 03894bdc4..b6453f8f4 100644
--- a/README.md
+++ b/README.md
@@ -234,7 +234,7 @@ extensions to the format.
 
 ## More information
 
-[`Temporal`][proposal] is the Stage 3 proposal for ECMAScript that
+[`Temporal`][proposal] is the Stage 4 proposal for ECMAScript that
 provides new JS objects and functions for working with dates and
 times that fully supports time zones and non-gregorian calendars.
 
diff --git a/src/lib.rs b/src/lib.rs
index a0f5011da..904b90c9b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -232,7 +232,7 @@
 //!
 //! ## More information
 //!
-//! [`Temporal`][proposal] is the Stage 3 proposal for ECMAScript that
+//! [`Temporal`][proposal] is the Stage 4 proposal for ECMAScript that
 //! provides new JS objects and functions for working with dates and
 //! times that fully supports time zones and non-gregorian calendars.
 //!