diff --git a/lib/core.ts b/lib/core.ts
index d1620528..6e5aadc8 100644
--- a/lib/core.ts
+++ b/lib/core.ts
@@ -1,9 +1,9 @@
 import {
+  BeforeApplicationShutdown,
   DynamicModule,
   FactoryProvider,
   Inject,
   Module,
-  OnApplicationShutdown,
   Provider,
   ValueProvider,
 } from "@nestjs/common";
@@ -23,7 +23,7 @@ import {
 } from "./interfaces";
 
 @Module({})
-export class ObjectionCoreModule implements OnApplicationShutdown {
+export class ObjectionCoreModule implements BeforeApplicationShutdown {
   constructor(
     @Inject(OBJECTION_MODULE_OPTIONS)
     private options: ObjectionModuleOptions,
@@ -153,7 +153,7 @@ export class ObjectionCoreModule implements OnApplicationShutdown {
     };
   }
 
-  async onApplicationShutdown(): Promise<void> {
+  async beforeApplicationShutdown(): Promise<void> {
     await this.disconnect();
   }
 
diff --git a/tests/constants.spec.ts b/tests/constants.spec.ts
deleted file mode 100644
index 8c03e40a..00000000
--- a/tests/constants.spec.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import * as constants from "../lib/constants";
-
-describe("Constants", () => {
-  test("has 3", () => {
-    const expected = 3;
-
-    expect(Object.keys(constants)).toHaveLength(expected);
-  });
-});