diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index 604beb99a..a264d2368 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -10577,7 +10577,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/exitPointerLock)
      */
     exitPointerLock(): void;
-    getElementById(elementId: string): HTMLElement | null;
+    getElementById<T extends HTMLElement = HTMLElement>(elementId: string): T | null;
     /**
      * The **`getElementsByClassName`** method of Document interface returns an array-like object of all child elements which have all of the given class name(s).
      *
diff --git a/baselines/ts5.5/dom.generated.d.ts b/baselines/ts5.5/dom.generated.d.ts
index d5ca4f096..af1c13085 100644
--- a/baselines/ts5.5/dom.generated.d.ts
+++ b/baselines/ts5.5/dom.generated.d.ts
@@ -10569,7 +10569,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/exitPointerLock)
      */
     exitPointerLock(): void;
-    getElementById(elementId: string): HTMLElement | null;
+    getElementById<T extends HTMLElement = HTMLElement>(elementId: string): T | null;
     /**
      * The **`getElementsByClassName`** method of Document interface returns an array-like object of all child elements which have all of the given class name(s).
      *
diff --git a/baselines/ts5.6/dom.generated.d.ts b/baselines/ts5.6/dom.generated.d.ts
index 23672a6c7..61d873d7d 100644
--- a/baselines/ts5.6/dom.generated.d.ts
+++ b/baselines/ts5.6/dom.generated.d.ts
@@ -10577,7 +10577,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/exitPointerLock)
      */
     exitPointerLock(): void;
-    getElementById(elementId: string): HTMLElement | null;
+    getElementById<T extends HTMLElement = HTMLElement>(elementId: string): T | null;
     /**
      * The **`getElementsByClassName`** method of Document interface returns an array-like object of all child elements which have all of the given class name(s).
      *
diff --git a/inputfiles/overridingTypes.jsonc b/inputfiles/overridingTypes.jsonc
index fc9172285..4afde6c0b 100644
--- a/inputfiles/overridingTypes.jsonc
+++ b/inputfiles/overridingTypes.jsonc
@@ -654,7 +654,7 @@
                         "getElementById": {
                             "name": "getElementById",
                             "overrideSignatures": [
-                                "getElementById(elementId: string): HTMLElement | null"
+                                "getElementById<T extends HTMLElement = HTMLElement>(elementId: string): T | null"
                             ]
                         },
                         "getElementsByTagNameNS": {