diff --git a/library/core/src/char/methods.rs b/library/core/src/char/methods.rs
index 458be49fb152a..4186565c131ed 100644
--- a/library/core/src/char/methods.rs
+++ b/library/core/src/char/methods.rs
@@ -223,7 +223,10 @@ impl char {
     /// assert_eq!('❤', c);
     /// ```
     #[stable(feature = "assoc_char_funcs", since = "1.52.0")]
-    #[rustc_const_unstable(feature = "const_char_from_u32_unchecked", issue = "89259")]
+    #[rustc_const_stable(
+        feature = "const_char_from_u32_unchecked",
+        since = "CURRENT_RUSTC_VERSION"
+    )]
     #[must_use]
     #[inline]
     pub const unsafe fn from_u32_unchecked(i: u32) -> char {
diff --git a/library/core/src/char/mod.rs b/library/core/src/char/mod.rs
index f3683fe3f9c83..26b463e25ea62 100644
--- a/library/core/src/char/mod.rs
+++ b/library/core/src/char/mod.rs
@@ -123,7 +123,7 @@ pub const fn from_u32(i: u32) -> Option<char> {
 /// Converts a `u32` to a `char`, ignoring validity. Use [`char::from_u32_unchecked`].
 /// instead.
 #[stable(feature = "char_from_unchecked", since = "1.5.0")]
-#[rustc_const_unstable(feature = "const_char_from_u32_unchecked", issue = "89259")]
+#[rustc_const_stable(feature = "const_char_from_u32_unchecked", since = "CURRENT_RUSTC_VERSION")]
 #[must_use]
 #[inline]
 pub const unsafe fn from_u32_unchecked(i: u32) -> char {
diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs
index 0f82f01e57a71..49f89e702558f 100644
--- a/library/core/src/lib.rs
+++ b/library/core/src/lib.rs
@@ -119,7 +119,6 @@
 #![feature(const_bigint_helper_methods)]
 #![feature(const_black_box)]
 #![feature(const_cell_into_inner)]
-#![feature(const_char_from_u32_unchecked)]
 #![feature(const_eval_select)]
 #![feature(const_exact_div)]
 #![feature(const_float_bits_conv)]