diff --git a/tests-js/scripts/mock-server.ts b/tests-js/scripts/mock-server.ts
index d9e0806c0c..6dffd2cf0f 100644
--- a/tests-js/scripts/mock-server.ts
+++ b/tests-js/scripts/mock-server.ts
@@ -1087,7 +1087,7 @@ providers:
     key_env: MOCK_API_KEY
     models:
       mock-model: {}
-    context_length: 4096
+    context_length: 64000
 `,
     'utf8',
   )