diff --git a/tests/baselines/reference/stringRawType.types b/tests/baselines/reference/stringRawType.types
index b29e37ccaa6..739d3b12754 100644
--- a/tests/baselines/reference/stringRawType.types
+++ b/tests/baselines/reference/stringRawType.types
@@ -4,12 +4,12 @@
 String.raw({ raw: ["foo", "bar", "baz"] }, 1, 2);
 >String.raw({ raw: ["foo", "bar", "baz"] }, 1, 2) : string
 >                                                 : ^^^^^^
->String.raw : (template: { raw: readonly string[] | ArrayLike<string>; }, ...substitutions: any[]) => string
->           : ^        ^^                                               ^^^^^             ^^     ^^^^^      
+>String.raw : (template: { readonly raw: readonly string[] | ArrayLike<string>; }, ...substitutions: any[]) => string
+>           : ^        ^^                                                        ^^^^^             ^^     ^^^^^      
 >String : StringConstructor
 >       : ^^^^^^^^^^^^^^^^^
->raw : (template: { raw: readonly string[] | ArrayLike<string>; }, ...substitutions: any[]) => string
->    : ^        ^^                                               ^^^^^             ^^     ^^^^^      
+>raw : (template: { readonly raw: readonly string[] | ArrayLike<string>; }, ...substitutions: any[]) => string
+>    : ^        ^^                                                        ^^^^^             ^^     ^^^^^      
 >{ raw: ["foo", "bar", "baz"] } : { raw: string[]; }
 >                               : ^^^^^^^^^^^^^^^^^^
 >raw : string[]