diff --git a/Library/Homebrew/sorbet/rbi/upstream.rbi b/Library/Homebrew/sorbet/rbi/upstream.rbi
index a00487f95a..7653a8622e 100644
--- a/Library/Homebrew/sorbet/rbi/upstream.rbi
+++ b/Library/Homebrew/sorbet/rbi/upstream.rbi
@@ -2,3 +2,111 @@
 
 # This file contains temporary definitions for fixes that have
 # been submitted upstream to https://github.com/sorbet/sorbet.
+
+# https://github.com/sorbet/sorbet/pull/7678
+class String
+  sig do
+    params(
+        arg0: Integer,
+        arg1: Integer,
+    )
+    .returns(T.nilable(String))
+  end
+  sig do
+    params(
+        arg0: T.any(T::Range[Integer], Regexp),
+    )
+    .returns(T.nilable(String))
+  end
+  sig do
+    params(
+        arg0: Regexp,
+        arg1: Integer,
+    )
+    .returns(T.nilable(String))
+  end
+   sig do
+     params(
+         arg0: Regexp,
+         arg1: T.any(String, Symbol),
+     )
+     .returns(T.nilable(String))
+   end
+  sig do
+    params(
+        arg0: String,
+    )
+    .returns(T.nilable(String))
+  end
+  def [](arg0, arg1=T.unsafe(nil)); end
+
+  sig do
+     params(
+         arg0: Integer,
+         arg1: Integer,
+     )
+     .returns(T.nilable(String))
+  end
+  sig do
+    params(
+        arg0: T.any(T::Range[Integer], Regexp),
+    )
+    .returns(T.nilable(String))
+  end
+  sig do
+    params(
+        arg0: Regexp,
+        arg1: Integer,
+    )
+    .returns(T.nilable(String))
+  end
+   sig do
+     params(
+         arg0: Regexp,
+         arg1: T.any(String, Symbol),
+     )
+     .returns(T.nilable(String))
+   end
+  sig do
+    params(
+        arg0: String,
+    )
+    .returns(T.nilable(String))
+  end
+  def slice!(arg0, arg1=T.unsafe(nil)); end
+
+  sig do
+    params(
+        arg0: Integer,
+        arg1: Integer,
+    )
+    .returns(T.nilable(String))
+  end
+  sig do
+    params(
+        arg0: T.any(T::Range[Integer], Regexp),
+    )
+    .returns(T.nilable(String))
+  end
+  sig do
+    params(
+        arg0: Regexp,
+        arg1: Integer,
+    )
+    .returns(T.nilable(String))
+  end
+  sig do
+    params(
+        arg0: Regexp,
+        arg1: T.any(String, Symbol),
+    )
+    .returns(T.nilable(String))
+  end
+  sig do
+    params(
+        arg0: String,
+    )
+    .returns(T.nilable(String))
+  end
+  def slice(arg0, arg1=T.unsafe(nil)); end
+end