diff --git a/packages/adapter-nextjs/__tests__/createServerRunner.test.ts b/packages/adapter-nextjs/__tests__/createServerRunner.test.ts
index 7525b8968c0..56eee26f28e 100644
--- a/packages/adapter-nextjs/__tests__/createServerRunner.test.ts
+++ b/packages/adapter-nextjs/__tests__/createServerRunner.test.ts
@@ -28,7 +28,7 @@ jest.mock(
 );
 
 describe('createServerRunner', () => {
-	let createServerRunner;
+	let createServerRunner: any;
 
 	const mockParseAWSExports = jest.fn();
 	const mockCreateAWSCredentialsAndIdentityIdProvider = jest.fn();
diff --git a/packages/adapter-nextjs/package.json b/packages/adapter-nextjs/package.json
index 4a0fb2130f6..a2d7fb162be 100644
--- a/packages/adapter-nextjs/package.json
+++ b/packages/adapter-nextjs/package.json
@@ -20,7 +20,7 @@
 		"jest-fetch-mock": "3.0.3",
 		"next": ">= 13.5.0 < 15.0.0",
 		"rollup": "3.29.4",
-		"typescript": "5.1.6"
+		"typescript": "5.0.2"
 	},
 	"publishConfig": {
 		"access": "public"
diff --git a/packages/adapter-nextjs/tsconfig.json b/packages/adapter-nextjs/tsconfig.json
index cf90b690b44..4cf76894da1 100755
--- a/packages/adapter-nextjs/tsconfig.json
+++ b/packages/adapter-nextjs/tsconfig.json
@@ -3,7 +3,7 @@
 	"compilerOptions": {
 		"allowSyntheticDefaultImports": true,
 		"target": "es2020",
-		"noImplicitAny": false,
+		"noImplicitAny": true,
 		"lib": ["dom", "es2019", "esnext.asynciterable"],
 		"module": "commonjs",
 		"moduleResolution": "node",