diff --git a/.changeset/two-beans-try.md b/.changeset/two-beans-try.md
new file mode 100644
index 000000000000..4181bdee569e
--- /dev/null
+++ b/.changeset/two-beans-try.md
@@ -0,0 +1,16 @@
+---
+'@astrojs/web-vitals': major
+'astro': major
+---
+
+Removes the `prerender` option from `injectRoute` in the Integrations API.
+
+The `injectRoute` integration method no longer accepts `prerender: true`. 
+
+Instead,  add the `prerender` export to your injected route like you would for other routes defined in the `src/pages` directory:
+
+```astro
+---
+export const prerender = true
+---
+```
diff --git a/packages/astro/src/actions/integration.ts b/packages/astro/src/actions/integration.ts
index 830420836a3d..83b77429d35f 100644
--- a/packages/astro/src/actions/integration.ts
+++ b/packages/astro/src/actions/integration.ts
@@ -21,7 +21,6 @@ export default function astroIntegrationActionsRouteHandler({
 				params.injectRoute({
 					pattern: '/_actions/[...path]',
 					entrypoint: 'astro/actions/runtime/route.js',
-					prerender: false,
 				});
 
 				params.addMiddleware({
diff --git a/packages/astro/src/actions/runtime/route.ts b/packages/astro/src/actions/runtime/route.ts
index 5827e431f62a..57b8cadd7062 100644
--- a/packages/astro/src/actions/runtime/route.ts
+++ b/packages/astro/src/actions/runtime/route.ts
@@ -3,6 +3,8 @@ import { formContentTypes, hasContentType } from './utils.js';
 import { getAction } from './virtual/get-action.js';
 import { serializeActionResult } from './virtual/shared.js';
 
+export const prerender = false;
+
 export const POST: APIRoute = async (context) => {
 	const { request, url } = context;
 	let baseAction;
diff --git a/packages/astro/src/core/routing/manifest/create.ts b/packages/astro/src/core/routing/manifest/create.ts
index 834c37efe226..f9cb365692e4 100644
--- a/packages/astro/src/core/routing/manifest/create.ts
+++ b/packages/astro/src/core/routing/manifest/create.ts
@@ -279,7 +279,7 @@ function createInjectedRoutes({ settings, cwd }: CreateRouteManifestParams): Rou
 	const routes: RouteData[] = [];
 
 	for (const injectedRoute of settings.injectedRoutes) {
-		const { pattern: name, entrypoint, prerender: prerenderInjected } = injectedRoute;
+		const { pattern: name, entrypoint } = injectedRoute;
 		const { resolved, component } = resolveInjectedRoute(entrypoint, config.root, cwd);
 
 		const segments = removeLeadingForwardSlash(name)
@@ -316,7 +316,7 @@ function createInjectedRoutes({ settings, cwd }: CreateRouteManifestParams): Rou
 			component,
 			generate,
 			pathname: pathname || void 0,
-			prerender: prerenderInjected ?? prerender,
+			prerender,
 			fallbackRoutes: [],
 		});
 	}
diff --git a/packages/astro/src/integrations/hooks.ts b/packages/astro/src/integrations/hooks.ts
index 0c40e60cdb96..0c7882689264 100644
--- a/packages/astro/src/integrations/hooks.ts
+++ b/packages/astro/src/integrations/hooks.ts
@@ -192,13 +192,6 @@ export async function runHookConfigSetup({
 					return { ...updatedConfig };
 				},
 				injectRoute: (injectRoute) => {
-					if (injectRoute.entrypoint == null && 'entryPoint' in injectRoute) {
-						logger.warn(
-							null,
-							`The injected route "${injectRoute.pattern}" by ${integration.name} specifies the entry point with the "entryPoint" property. This property is deprecated, please use "entrypoint" instead.`,
-						);
-						injectRoute.entrypoint = injectRoute.entryPoint as string;
-					}
 					updatedSettings.injectedRoutes.push(injectRoute);
 				},
 				addWatchFile: (path) => {
diff --git a/packages/astro/src/types/public/integrations.ts b/packages/astro/src/types/public/integrations.ts
index 0836bdc9e9bb..34768f2ce198 100644
--- a/packages/astro/src/types/public/integrations.ts
+++ b/packages/astro/src/types/public/integrations.ts
@@ -144,7 +144,6 @@ export type InjectedScriptStage = 'before-hydration' | 'head-inline' | 'page' |
 export interface InjectedRoute {
 	pattern: string;
 	entrypoint: string;
-	prerender?: boolean;
 }
 
 export interface ResolvedInjectedRoute extends InjectedRoute {
diff --git a/packages/astro/test/fixtures/reuse-injected-entrypoint/astro.config.mjs b/packages/astro/test/fixtures/reuse-injected-entrypoint/astro.config.mjs
index 266e31c07f93..26e993150381 100644
--- a/packages/astro/test/fixtures/reuse-injected-entrypoint/astro.config.mjs
+++ b/packages/astro/test/fixtures/reuse-injected-entrypoint/astro.config.mjs
@@ -10,25 +10,21 @@ export default defineConfig({
 					injectRoute({
 						pattern: `/injected-a`,
 						entrypoint: './src/to-inject.astro',
-						prerender: true,
 					});
 					injectRoute({
 						pattern: `/injected-b`,
 						entrypoint: './src/to-inject.astro',
-						prerender: true,
 					});
 					injectRoute({
 						pattern: `/dynamic-a/[id]`,
 						entrypoint: './src/[id].astro',
-						prerender: true,
 					});
 					injectRoute({
 						pattern: `/dynamic-b/[id]`,
 						entrypoint: './src/[id].astro',
-						prerender: true,
 					});
 				},
 			},
 		},
 	],
-});
\ No newline at end of file
+});
diff --git a/packages/integrations/web-vitals/src/index.ts b/packages/integrations/web-vitals/src/index.ts
index c74ab32613ee..546c09bb23de 100644
--- a/packages/integrations/web-vitals/src/index.ts
+++ b/packages/integrations/web-vitals/src/index.ts
@@ -25,7 +25,6 @@ export default function webVitals({ deprecated }: { deprecated?: boolean } = {})
 				injectRoute({
 					entrypoint: '@astrojs/web-vitals/endpoint',
 					pattern: WEB_VITALS_ENDPOINT_PATH + '/[...any]',
-					prerender: false,
 				});
 				// Client-side performance measurement script.
 				injectScript('page', `import '@astrojs/web-vitals/client-script';`);