diff --git a/packages/platforms/react-native/tests/auto-instrumentation/app-start-plugin.test.ts b/packages/platforms/react-native/tests/auto-instrumentation/app-start-plugin.test.ts
index ffce03791..840159914 100644
--- a/packages/platforms/react-native/tests/auto-instrumentation/app-start-plugin.test.ts
+++ b/packages/platforms/react-native/tests/auto-instrumentation/app-start-plugin.test.ts
@@ -4,6 +4,7 @@ import createClock from '../../lib/clock'
 import { AppStartPlugin } from '../../lib/auto-instrumentation/app-start-plugin'
 import type { ReactNativeConfiguration } from '../../lib/config'
 import type { AppRegistry } from 'react-native'
+import type { ReactNativeSpanFactory } from '../../lib/span-factory'
 
 describe('app start plugin', () => {
   let spanFactory: MockSpanFactory<ReactNativeConfiguration>
@@ -20,7 +21,7 @@ describe('app start plugin', () => {
 
   it('starts an app start span when autoInstrumentAppStarts is true', () => {
     const appStartTime = 1234
-    const plugin = new AppStartPlugin(appStartTime, spanFactory, clock, appRegistry)
+    const plugin = new AppStartPlugin(appStartTime, spanFactory as unknown as ReactNativeSpanFactory, clock, appRegistry)
 
     plugin.configure(createConfiguration<ReactNativeConfiguration>({ autoInstrumentAppStarts: true }))
 
@@ -34,7 +35,7 @@ describe('app start plugin', () => {
   })
 
   it('does not start an app start span when autoInstrumentAppStarts is false', () => {
-    const plugin = new AppStartPlugin(1234, spanFactory, clock, appRegistry)
+    const plugin = new AppStartPlugin(1234, spanFactory as unknown as ReactNativeSpanFactory, clock, appRegistry)
 
     plugin.configure(createConfiguration<ReactNativeConfiguration>({ autoInstrumentAppStarts: false }))
 
diff --git a/packages/platforms/react-native/tests/create-navigation-span.test.ts b/packages/platforms/react-native/tests/create-navigation-span.test.ts
index 910e57865..fcf0c21d5 100644
--- a/packages/platforms/react-native/tests/create-navigation-span.test.ts
+++ b/packages/platforms/react-native/tests/create-navigation-span.test.ts
@@ -1,10 +1,11 @@
 import { MockSpanFactory } from '@bugsnag/js-performance-test-utilities'
 import { createNavigationSpan } from '../lib/create-navigation-span'
+import type { ReactNativeSpanFactory } from '../lib/span-factory'
 
 describe('createNavigationSpan', () => {
   it('sets the span name to the route prefixed with [Navigation]', () => {
     const spanFactory = new MockSpanFactory()
-    const span = createNavigationSpan(spanFactory, 'testRoute', { isFirstClass: false })
+    const span = createNavigationSpan(spanFactory as unknown as ReactNativeSpanFactory, 'testRoute', { isFirstClass: false })
     const endedSpan = span.end(12345, spanFactory.sampler.spanProbability)
 
     expect(endedSpan.name).toBe('[Navigation]testRoute')
@@ -12,7 +13,7 @@ describe('createNavigationSpan', () => {
 
   it('always sets the span as first class', () => {
     const spanFactory = new MockSpanFactory()
-    const span = createNavigationSpan(spanFactory, 'testRoute', { isFirstClass: false })
+    const span = createNavigationSpan(spanFactory as unknown as ReactNativeSpanFactory, 'testRoute', { isFirstClass: false })
     const endedSpan = span.end(12345, spanFactory.sampler.spanProbability)
 
     expect(endedSpan.attributes.toJson()).toContainEqual({ key: 'bugsnag.span.first_class', value: { boolValue: true } })
@@ -20,7 +21,7 @@ describe('createNavigationSpan', () => {
 
   it('includes navigation category attribute', () => {
     const spanFactory = new MockSpanFactory()
-    const span = createNavigationSpan(spanFactory, 'testRoute', { isFirstClass: true })
+    const span = createNavigationSpan(spanFactory as unknown as ReactNativeSpanFactory, 'testRoute', { isFirstClass: true })
     const endedSpan = span.end(12345, spanFactory.sampler.spanProbability)
 
     expect(endedSpan.attributes.toJson()).toContainEqual({ key: 'bugsnag.span.category', value: { stringValue: 'navigation' } })
@@ -28,7 +29,7 @@ describe('createNavigationSpan', () => {
 
   it('includes the route attribute', () => {
     const spanFactory = new MockSpanFactory()
-    const span = createNavigationSpan(spanFactory, 'testRoute', { isFirstClass: true })
+    const span = createNavigationSpan(spanFactory as unknown as ReactNativeSpanFactory, 'testRoute', { isFirstClass: true })
     const endedSpan = span.end(12345, spanFactory.sampler.spanProbability)
 
     expect(endedSpan.attributes.toJson()).toContainEqual({ key: 'bugsnag.navigation.route', value: { stringValue: 'testRoute' } })
diff --git a/packages/platforms/react-native/tests/platform-extensions.test.ts b/packages/platforms/react-native/tests/platform-extensions.test.ts
index 6810296c1..19597e7d7 100644
--- a/packages/platforms/react-native/tests/platform-extensions.test.ts
+++ b/packages/platforms/react-native/tests/platform-extensions.test.ts
@@ -1,3 +1,4 @@
+import type { ReactNativeSpanFactory } from '../lib'
 import { platformExtensions } from '../lib/platform-extensions'
 import { createTestClient, IncrementingClock, InMemoryDelivery, VALID_API_KEY } from '@bugsnag/js-performance-test-utilities'
 
@@ -7,7 +8,7 @@ describe('startNavigationSpan', () => {
   it('creates a navigation span', async () => {
     const delivery = new InMemoryDelivery()
     const clock = new IncrementingClock()
-    const testClient = createTestClient({ deliveryFactory: () => delivery, platformExtensions: (spanFactory, spanContextStorage) => platformExtensions(0, clock, spanFactory, spanContextStorage) })
+    const testClient = createTestClient({ deliveryFactory: () => delivery, platformExtensions: (spanFactory, spanContextStorage) => platformExtensions(0, clock, spanFactory as unknown as ReactNativeSpanFactory, spanContextStorage) })
     testClient.start({ apiKey: VALID_API_KEY })
     await jest.runOnlyPendingTimersAsync()
 
diff --git a/packages/plugin-react-navigation/test/create-navigation-container.test.tsx b/packages/plugin-react-navigation/test/create-navigation-container.test.tsx
index 43dc0516a..8e9d5f347 100644
--- a/packages/plugin-react-navigation/test/create-navigation-container.test.tsx
+++ b/packages/plugin-react-navigation/test/create-navigation-container.test.tsx
@@ -1,5 +1,5 @@
 import { MockSpanFactory } from '@bugsnag/js-performance-test-utilities'
-import type { ReactNativeConfiguration } from '@bugsnag/react-native-performance'
+import type { ReactNativeConfiguration, ReactNativeSpanFactory } from '@bugsnag/react-native-performance'
 import { NavigationContainer, createNavigationContainerRef } from '@react-navigation/native'
 import type { ParamListBase } from '@react-navigation/native'
 import { createNativeStackNavigator } from '@react-navigation/native-stack'
@@ -20,7 +20,7 @@ afterEach(() => {
 describe('createNavigationContainer', () => {
   it('creates a navigation span when the route changes', () => {
     const spanFactory = new MockSpanFactory<ReactNativeConfiguration>()
-    const BugsnagNavigationContainer = createNavigationContainer(NavigationContainer, spanFactory)
+    const BugsnagNavigationContainer = createNavigationContainer(NavigationContainer, spanFactory as unknown as ReactNativeSpanFactory)
 
     render(
       <BugsnagNavigationContainer>
@@ -44,7 +44,7 @@ describe('createNavigationContainer', () => {
   it('forwards the provided ref to the NavigationContainer', () => {
     const navigationRef = createNavigationContainerRef()
     const spanFactory = new MockSpanFactory<ReactNativeConfiguration>()
-    const BugsnagNavigationContainer = createNavigationContainer(NavigationContainer, spanFactory)
+    const BugsnagNavigationContainer = createNavigationContainer(NavigationContainer, spanFactory as unknown as ReactNativeSpanFactory)
 
     render(
       <BugsnagNavigationContainer ref={navigationRef}>
diff --git a/packages/plugin-react-navigation/test/navigation-context.test.tsx b/packages/plugin-react-navigation/test/navigation-context.test.tsx
index 589ace701..950b4ed9c 100644
--- a/packages/plugin-react-navigation/test/navigation-context.test.tsx
+++ b/packages/plugin-react-navigation/test/navigation-context.test.tsx
@@ -1,6 +1,6 @@
 import type { SpanFactory } from '@bugsnag/core-performance'
 import { MockSpanFactory } from '@bugsnag/js-performance-test-utilities'
-import type { ReactNativeConfiguration } from '@bugsnag/react-native-performance'
+import type { ReactNativeConfiguration, ReactNativeSpanFactory } from '@bugsnag/react-native-performance'
 import { fireEvent, render, screen } from '@testing-library/react-native'
 import React, { useContext } from 'react'
 import { Button, View } from 'react-native'
@@ -189,7 +189,7 @@ const App = ({ spanFactory }: AppProps) => {
   const [currentRoute, setCurrentRoute] = React.useState('initial-route')
 
   return (
-    <NavigationContextProvider spanFactory={spanFactory} currentRoute={currentRoute} >
+    <NavigationContextProvider spanFactory={spanFactory as unknown as ReactNativeSpanFactory} currentRoute={currentRoute} >
       <Route />
       <Button title='Change to route 1' onPress={() => { setCurrentRoute('route-1') }} />
       <Button title='Change to route 2' onPress={() => { setCurrentRoute('route-2') }} />
diff --git a/packages/test-utilities/lib/mock-span-factory.ts b/packages/test-utilities/lib/mock-span-factory.ts
index 20e684b63..7e2c10e4f 100644
--- a/packages/test-utilities/lib/mock-span-factory.ts
+++ b/packages/test-utilities/lib/mock-span-factory.ts
@@ -1,9 +1,7 @@
 import {
   DefaultSpanContextStorage,
   Sampler,
-
   SpanFactory
-
 } from '@bugsnag/core-performance'
 import type { SpanAttribute, Configuration, SpanEnded, SpanInternal, SpanOptions } from '@bugsnag/core-performance'
 import ControllableBackgroundingListener from './controllable-backgrounding-listener'