New Version

package.json

@@ -33,10 +33,10 @@
         "test:watch": "jest --watch",
         "test:cov": "jest --coverage",
         "test:debug": "node --inspect-brk -r ts-node/register node_modules/.bin/jest --runInBand",
-        "test:e2e": "jest --config ./test/jest-e2e.config.json"
+        "test:e2e": "jest --config ./test/jest-e2e.config.json",
+        "cleanup-lockfile": "yarn-deduplicate --strategy fewer"
     },
     "dependencies": {
-        "@types/mongoose": "^5.0.0",
         "@types/mongodb": "^3.0.0"
     },
     "husky": {
@@ -47,32 +47,33 @@
     "devDependencies": {
         "@semantic-release/changelog": "^5.0.1",
         "@semantic-release/commit-analyzer": "^8.0.1",
-        "@semantic-release/github": "^7.0.5",
-        "@semantic-release/npm": "^7.0.5",
+        "@semantic-release/github": "^7.2.0",
+        "@semantic-release/npm": "^7.0.10",
         "@semantic-release/release-notes-generator": "^9.0.1",
-        "@types/jest": "^25.2.1",
-        "@types/node": "^12.12.34",
-        "@typescript-eslint/eslint-plugin": "^2.27.0",
-        "@typescript-eslint/parser": "^2.27.0",
+        "@types/jest": "^26.0.20",
+        "@types/node": "^12.19.14",
+        "@typescript-eslint/eslint-plugin": "^4.14.0",
+        "@typescript-eslint/parser": "^4.14.0",
         "condition-circle": "^2.0.2",
         "dependency-check": "^4.1.0",
-        "eslint": "^6.8.0",
-        "eslint-config-prettier": "^6.10.1",
-        "eslint-plugin-prettier": "^3.1.2",
-        "husky": "^4.2.3",
-        "jest": "^25.2.7",
-        "jest-circus": "^25.2.7",
-        "jest-html-reporter": "^3.0.0",
-        "jest-junit": "^10.0.0",
-        "prettier": "^2.0.4",
-        "pretty-quick": "^2.0.1",
+        "eslint": "^7.18.0",
+        "eslint-config-prettier": "^7.2.0",
+        "eslint-plugin-prettier": "^3.3.1",
+        "husky": "^4.3.8",
+        "jest": "^26.6.3",
+        "jest-circus": "^26.6.3",
+        "jest-html-reporter": "^3.3.0",
+        "jest-junit": "^12.0.0",
+        "mongoose": "5.11.12",
+        "prettier": "^2.2.1",
+        "pretty-quick": "^3.1.0",
         "rimraf": "^3.0.2",
-        "semantic-release": "^17.0.4",
-        "ts-jest": "^25.3.1",
-        "typescript": "~3.8.3"
+        "semantic-release": "^17.3.4",
+        "ts-jest": "^26.4.4",
+        "typescript": "~4.1.3",
+        "yarn-deduplicate": "^3.1.0"
     },
     "peerDependencies": {
-        "mongoose": "^5.0.0",
-        "mongodb": "^3.0.0"
+        "mongoose": "^5.11.12"
     }
 }

src/abstract-migrator.ts

@@ -29,7 +29,7 @@ export abstract class AbstractMigrator {
         return this.versionStorage.writeVersion(version);
     }
 
-    protected abstract async upgrade(fromVersion: number | null, toVersion: number): Promise<void>;
+    protected abstract upgrade(fromVersion: number | null, toVersion: number): Promise<void>;
 
-    protected abstract async downgrade(fromVersion: number, toVersion: number): Promise<void>;
+    protected abstract downgrade(fromVersion: number, toVersion: number): Promise<void>;
 }

src/mongodb-collection-migrator.ts

@@ -1,4 +1,4 @@
-import { Collection, Db } from 'mongodb';
+import type { Collection, Db } from 'mongodb';
 
 import { AbstractMigrator } from './abstract-migrator';
 import { MongodbCollectionVersionStorage } from './mongodb-collection-version-storage';

src/mongodb-collection-version-storage.ts

@@ -1,6 +1,6 @@
-import { Collection } from 'mongodb';
+import type { Collection } from 'mongodb';
 
-import { VersionStorage, VersionInformation } from './abstract-migrator';
+import type { VersionStorage, VersionInformation } from './abstract-migrator';
 
 export class MongodbCollectionVersionStorage implements VersionStorage {
     constructor(private readonly versionCollection: Collection<VersionInformation>) {}

src/mongodb-collection-versioning-utils.ts

@@ -1,7 +1,8 @@
-import { Db } from 'mongodb';
+import type { Db } from 'mongodb';
 
-import { VersionInformation } from './abstract-migrator';
-import { CollectionMigrationHandler, CollectionMigrator } from './mongodb-collection-migrator';
+import type { VersionInformation } from './abstract-migrator';
+import type { CollectionMigrationHandler } from './mongodb-collection-migrator';
+import { CollectionMigrator } from './mongodb-collection-migrator';
 import { MongodbCollectionVersionStorage } from './mongodb-collection-version-storage';
 import { getGlobalMongooseConnectionDb } from './utils';
 

src/mongoose-model-migrator.ts

@@ -1,5 +1,5 @@
-import { Document, Model } from 'mongoose';
-import { Db } from 'mongodb';
+import type { Document, Model } from 'mongoose';
+import type { Db } from 'mongodb';
 
 import { AbstractMigrator } from './abstract-migrator';
 import { MongodbCollectionVersionStorage } from './mongodb-collection-version-storage';

src/mongoose-model-versioning-utils.ts

@@ -1,9 +1,10 @@
-import { Document, Model } from 'mongoose';
-import { Db } from 'mongodb';
+import type { Document, Model } from 'mongoose';
+import type { Db } from 'mongodb';
 
-import { ModelMigrationHandler, ModelMigrator } from './mongoose-model-migrator';
+import type { ModelMigrationHandler } from './mongoose-model-migrator';
+import { ModelMigrator } from './mongoose-model-migrator';
 import { getGlobalMongooseConnectionDb } from './utils';
-import { VersionInformation } from './abstract-migrator';
+import type { VersionInformation } from './abstract-migrator';
 import { MongodbCollectionVersionStorage } from './mongodb-collection-version-storage';
 
 export interface ModelMigratorOptions {

src/utils.ts

@@ -1,4 +1,4 @@
-import { Db } from 'mongodb';
+import type { Db } from 'mongodb';
 
 export async function getGlobalMongooseConnectionDb(): Promise<Db> {
     const mongoose = await import('mongoose');