diff --git a/library/alloc/src/rc.rs b/library/alloc/src/rc.rs
index d0d37c08d1306..a00174ceac694 100644
--- a/library/alloc/src/rc.rs
+++ b/library/alloc/src/rc.rs
@@ -2112,7 +2112,7 @@ impl<T> Weak<T> {
     /// assert!(empty.upgrade().is_none());
     /// ```
     #[stable(feature = "downgraded_weak", since = "1.10.0")]
-    #[rustc_const_unstable(feature = "const_weak_new", issue = "95091", reason = "recently added")]
+    #[rustc_const_stable(feature = "const_weak_new", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     pub const fn new() -> Weak<T> {
         Weak { ptr: unsafe { NonNull::new_unchecked(ptr::invalid_mut::<RcBox<T>>(usize::MAX)) } }
diff --git a/library/alloc/src/sync.rs b/library/alloc/src/sync.rs
index a19999cd72580..f6c7ab27ba7de 100644
--- a/library/alloc/src/sync.rs
+++ b/library/alloc/src/sync.rs
@@ -1743,7 +1743,7 @@ impl<T> Weak<T> {
     /// assert!(empty.upgrade().is_none());
     /// ```
     #[stable(feature = "downgraded_weak", since = "1.10.0")]
-    #[rustc_const_unstable(feature = "const_weak_new", issue = "95091", reason = "recently added")]
+    #[rustc_const_stable(feature = "const_weak_new", since = "CURRENT_RUSTC_VERSION")]
     #[must_use]
     pub const fn new() -> Weak<T> {
         Weak { ptr: unsafe { NonNull::new_unchecked(ptr::invalid_mut::<ArcInner<T>>(usize::MAX)) } }