diff --git a/stdlib/tempfile/0/tempfile.rbs b/stdlib/tempfile/0/tempfile.rbs
index 9a2f706e9..421ab383d 100644
--- a/stdlib/tempfile/0/tempfile.rbs
+++ b/stdlib/tempfile/0/tempfile.rbs
@@ -253,8 +253,8 @@ class Tempfile < File
   #
   # Related: Tempfile.new.
   #
-  def self.create: (?String | [ String, String ] basename, ?String? tmpdir, ?mode: Integer, **untyped) -> File
-                 | [A] (?String | [ String, String ] basename, ?String? tmpdir, ?mode: Integer, **untyped) { (File) -> A } -> A
+  def self.create: (?String | [ String, String ] basename, ?String? tmpdir, ?mode: Integer, ?anonymous: bool, **untyped) -> File
+                 | [A] (?String | [ String, String ] basename, ?String? tmpdir, ?mode: Integer, ?anonymous: bool, **untyped) { (File) -> A } -> A
 
   # <!--
   #   rdoc-file=lib/tempfile.rb
diff --git a/test/stdlib/tempfile/Tempfile_test.rb b/test/stdlib/tempfile/Tempfile_test.rb
index 17cb47075..cdda6dff0 100644
--- a/test/stdlib/tempfile/Tempfile_test.rb
+++ b/test/stdlib/tempfile/Tempfile_test.rb
@@ -34,6 +34,17 @@ def test_create
 
     assert_send_type "() { (::File) -> Integer } -> Integer",
                      Tempfile, :create do |file| 123 end
+
+    if_ruby("3.4"..., skip: false) do
+      assert_send_type(
+        "(anonymous: true) -> File",
+        Tempfile, :create, anonymous: true
+      )
+      assert_send_type(
+        "(anonymous: true) { (File) -> String } -> String",
+        Tempfile, :create, anonymous: true, &->(file) { "test" }
+      )
+    end
   end
 
   def test_initialize