diff --git a/src/ml/imf/registry.ts b/src/ml/imf/registry.ts
index 3f4972e..31e6863 100644
--- a/src/ml/imf/registry.ts
+++ b/src/ml/imf/registry.ts
@@ -16,7 +16,7 @@
 import { load as loadYaml } from "js-yaml"
 
 export const DEFAULT_INDEX_URL =
-  "https://github.com/interscript/interscript-models/releases/download/index-v8/models-index.yaml"
+  "https://github.com/interscript/interscript-models/releases/download/index-v9/models-index.yaml"
 
 export interface Part {
   url: string
diff --git a/test/client-work.test.ts b/test/client-work.test.ts
index 758924f..4cb33f7 100644
--- a/test/client-work.test.ts
+++ b/test/client-work.test.ts
@@ -145,9 +145,9 @@ describe("CORS asset rewrite (13)", () => {
   it("rewrites canonical interscript-models release URLs too", () => {
     expect(
       corsAssetUrl(
-        "https://github.com/interscript/interscript-models/releases/download/index-v8/models-index.yaml",
+        "https://github.com/interscript/interscript-models/releases/download/index-v9/models-index.yaml",
       ),
-    ).toBe("https://api.interscript.org/v1/assets/index-v8/models-index.yaml")
+    ).toBe("https://api.interscript.org/v1/assets/index-v9/models-index.yaml")
   })
   it("leaves other hosts and schemes untouched", () => {
     expect(corsAssetUrl("https://example.com/x.zip")).toBe("https://example.com/x.zip")
diff --git a/test/imf.test.ts b/test/imf.test.ts
index 164ba1e..477e99b 100644
--- a/test/imf.test.ts
+++ b/test/imf.test.ts
@@ -259,7 +259,7 @@ describe("registry", () => {
   it("DEFAULT_INDEX_URL pins a GitHub Release asset, never raw", async () => {
     const { DEFAULT_INDEX_URL } = await import("../src/ml/imf/registry.js")
     expect(DEFAULT_INDEX_URL).toMatch(
-      /^https:\/\/github\.com\/interscript\/interscript-models\/releases\/download\/index-v8\/models-index\.yaml$/,
+      /^https:\/\/github\.com\/interscript\/interscript-models\/releases\/download\/index-v9\/models-index\.yaml$/,
     )
     expect(DEFAULT_INDEX_URL).not.toMatch(/raw\.githubusercontent/)
   })
@@ -389,7 +389,7 @@ describe("registry", () => {
     expect(typeof imf!["resolve"]).toBe("function")
     expect(typeof imf!["IMFModel"]).toBe("function")
     expect(imf!["DEFAULT_INDEX_URL"]).toMatch(
-      /github\.com\/interscript\/interscript-models\/releases\/download\/index-v8\/models-index\.yaml/,
+      /github\.com\/interscript\/interscript-models\/releases\/download\/index-v9\/models-index\.yaml/,
     )
   })
 })