diff --git a/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/anthropic_messages.test.tsx b/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/anthropic_messages.test.tsx
index 995104d4b7f..96ace129f87 100644
--- a/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/anthropic_messages.test.tsx
+++ b/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/anthropic_messages.test.tsx
@@ -9,7 +9,9 @@ vi.mock("@/components/networking", () => ({
 const mockMessagesStream = vi.fn();
 
 vi.mock("@anthropic-ai/sdk", () => ({
-  default: vi.fn(() => ({ messages: { stream: mockMessagesStream } })),
+  default: vi.fn(function () {
+    return { messages: { stream: mockMessagesStream } };
+  }),
 }));
 
 describe("anthropic_messages prompt cache usage", () => {
diff --git a/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/audio_speech.test.tsx b/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/audio_speech.test.tsx
index dbfe8a39959..17f5d0f28a4 100644
--- a/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/audio_speech.test.tsx
+++ b/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/audio_speech.test.tsx
@@ -20,13 +20,15 @@ describe("audio_speech", () => {
     });
 
     // Mock the OpenAI constructor and its methods
-    (OpenAI as any).mockImplementation(() => ({
-      audio: {
-        speech: {
-          create: mockCreate,
+    (OpenAI as any).mockImplementation(function () {
+      return {
+        audio: {
+          speech: {
+            create: mockCreate,
+          },
         },
-      },
-    }));
+      };
+    });
   });
 
   afterEach(() => {
diff --git a/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/audio_transcriptions.test.tsx b/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/audio_transcriptions.test.tsx
index 65b11e7f7d8..52561e5d42e 100644
--- a/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/audio_transcriptions.test.tsx
+++ b/ui/litellm-dashboard/src/app/(dashboard)/playground/llm_calls/audio_transcriptions.test.tsx
@@ -16,13 +16,15 @@ describe("audio_transcription", () => {
     });
 
     // Mock the OpenAI constructor and its methods
-    (OpenAI as any).mockImplementation(() => ({
-      audio: {
-        transcriptions: {
-          create: mockCreate,
+    (OpenAI as any).mockImplementation(function () {
+      return {
+        audio: {
+          transcriptions: {
+            create: mockCreate,
+          },
         },
-      },
-    }));
+      };
+    });
   });
 
   afterEach(() => {
diff --git a/ui/litellm-dashboard/src/components/llm_calls/chat_completion.test.tsx b/ui/litellm-dashboard/src/components/llm_calls/chat_completion.test.tsx
index bc4b4e3a351..08b02cacb21 100644
--- a/ui/litellm-dashboard/src/components/llm_calls/chat_completion.test.tsx
+++ b/ui/litellm-dashboard/src/components/llm_calls/chat_completion.test.tsx
@@ -20,7 +20,9 @@ const mockClient = {
 
 vi.mock("openai", () => ({
   default: {
-    OpenAI: vi.fn(() => mockClient),
+    OpenAI: vi.fn(function () {
+      return mockClient;
+    }),
   },
 }));
 
diff --git a/ui/litellm-dashboard/src/components/llm_calls/responses_api.test.tsx b/ui/litellm-dashboard/src/components/llm_calls/responses_api.test.tsx
index 0b94c093acd..ae5e224cfbf 100644
--- a/ui/litellm-dashboard/src/components/llm_calls/responses_api.test.tsx
+++ b/ui/litellm-dashboard/src/components/llm_calls/responses_api.test.tsx
@@ -16,7 +16,9 @@ const mockClient = {
 
 vi.mock("openai", () => ({
   default: {
-    OpenAI: vi.fn(() => mockClient),
+    OpenAI: vi.fn(function () {
+      return mockClient;
+    }),
   },
 }));