diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
index e29445f74..3edfda00e 100644
--- a/baselines/dom.generated.d.ts
+++ b/baselines/dom.generated.d.ts
@@ -10950,7 +10950,7 @@ interface Node extends EventTarget {
     /**
      * Returns the previous sibling.
      */
-    readonly previousSibling: Node | null;
+    readonly previousSibling: ChildNode | null;
     textContent: string | null;
     appendChild<T extends Node>(newChild: T): T;
     /**
diff --git a/inputfiles/overridingTypes.json b/inputfiles/overridingTypes.json
index 5b424cd18..883b077f4 100644
--- a/inputfiles/overridingTypes.json
+++ b/inputfiles/overridingTypes.json
@@ -691,6 +691,9 @@
                         },
                         "nextSibling": {
                             "override-type": "ChildNode | null"
+                        },
+                        "previousSibling": {
+                            "override-type": "ChildNode | null"
                         }
                     }
                 }