diff --git a/rbi/annotations/activesupport.rbi b/rbi/annotations/activesupport.rbi
index 67871b78..7bd6330f 100644
--- a/rbi/annotations/activesupport.rbi
+++ b/rbi/annotations/activesupport.rbi
@@ -493,4 +493,15 @@ class ActiveSupport::ErrorReporter
     ).void
   end
   def report(error, handled: true, severity: T.unsafe(nil), context: T.unsafe(nil), source: T.unsafe(nil)); end
+
+  # @version >= 7.2.0.beta1
+  sig do
+    params(
+      error: T.any(Exception, String),
+      severity: T.nilable(Symbol),
+      context: T::Hash[Symbol, T.untyped],
+      source: T.nilable(String),
+    ).void
+  end
+  def unexpected(error, severity: T.unsafe(nil), context: T.unsafe(nil), source: T.unsafe(nil)); end
 end