diff --git a/tests/spec/core/inlines-spec.js b/tests/spec/core/inlines-spec.js
index 9ca89d38a9..afe5fc1877 100644
--- a/tests/spec/core/inlines-spec.js
+++ b/tests/spec/core/inlines-spec.js
@@ -362,7 +362,7 @@ describe("Core - Inlines", () => {
     const doc = await makeRSDoc(makeStandardOps(null, body));
     const syntaxErrorAnchor = doc.querySelector("#test a");
     expect(syntaxErrorAnchor.href).toBe(
-      "https://heycam.github.io/webidl/#syntaxerror"
+      "https://webidl.spec.whatwg.org/#syntaxerror"
     );
   });
 
diff --git a/tests/spec/core/webidl-spec.js b/tests/spec/core/webidl-spec.js
index 8bf16c3776..3a936a344e 100644
--- a/tests/spec/core/webidl-spec.js
+++ b/tests/spec/core/webidl-spec.js
@@ -1368,7 +1368,7 @@ callback CallBack = Z? (X x, optional Y y, /*trivia*/ optional Z z);
 
     // DOMString fromWebIDL();
     const domString = doc.querySelector(
-      "#link-test a[href='https://heycam.github.io/webidl/#idl-DOMString']"
+      "#link-test a[href='https://webidl.spec.whatwg.org/#idl-DOMString']"
     );
     expect(domString).toBeTruthy();
 
@@ -1426,7 +1426,7 @@ callback CallBack = Z? (X x, optional Y y, /*trivia*/ optional Z z);
     const objectAnchor = doc.querySelector("#link-test a[href$=idl-object]");
     expect(objectAnchor.dataset.xrefType).toBe("interface");
     expect(objectAnchor.href).toBe(
-      "https://heycam.github.io/webidl/#idl-object"
+      "https://webidl.spec.whatwg.org/#idl-object"
     );
   });
 
diff --git a/tests/spec/core/xref-spec.js b/tests/spec/core/xref-spec.js
index 6213c03f8c..dc839f18d3 100644
--- a/tests/spec/core/xref-spec.js
+++ b/tests/spec/core/xref-spec.js
@@ -21,6 +21,7 @@ describe("Core — xref", () => {
       id: "service-workers-1",
       href: "https://www.w3.org/TR/service-workers-1/",
     },
+    webidl: { id: "WebIDL", href: "https://webidl.spec.whatwg.org/" },
     infra: { id: "INFRA", href: "https://infra.spec.whatwg.org/" },
     "credential-management": { aliasOf: "credential-management-1" },
     "credential-management-1": {
@@ -242,7 +243,7 @@ describe("Core — xref", () => {
     );
     const externalDfn1 = doc.querySelector("#external-dfn-1 a");
     expect(externalDfn1.href).toBe(
-      "https://heycam.github.io/webidl/#dfn-dictionary"
+      "https://webidl.spec.whatwg.org/#dfn-dictionary"
     );
     const externalDfn2 = doc.querySelector("#external-dfn-2 a");
     expect(externalDfn2.href).toBe("https://infra.spec.whatwg.org/#list");
@@ -499,9 +500,7 @@ describe("Core — xref", () => {
     const valid3 = doc.getElementById("valid3");
     expect(valid3.href).toBe("https://example.com/#fake-inform-3");
     const valid3n = doc.getElementById("valid3n");
-    expect(valid3n.href).toBe(
-      "https://heycam.github.io/webidl/#dfn-dictionary"
-    );
+    expect(valid3n.href).toBe("https://webidl.spec.whatwg.org/#dfn-dictionary");
     const valid4 = doc.getElementById("valid4");
     expect(valid4.href).toBe("https://example.com/#fake-inform-4");
     const valid4n = doc.getElementById("valid4n");