diff --git a/packages/cc-server-db-mongo/src/client/connection.ts b/packages/cc-server-db-mongo/src/client/connection.ts
index d029a07..6f38781 100644
--- a/packages/cc-server-db-mongo/src/client/connection.ts
+++ b/packages/cc-server-db-mongo/src/client/connection.ts
@@ -7,17 +7,17 @@ export class MongoDBConnection {
     private static isConnected: boolean = false;
     private static db: Db;
 
-    public static getConnection(result: (connection) => void) {
+    public static getConnection(result: (connection: Db) => void) {
         if (this.isConnected) {
             return result(this.db);
         } else {
-            this.connect((error, db: Db) => {
+            this.connect((error: Error, db: Db) => {
                 return result(this.db);
             });
         }
     }
 
-    private static connect(result: (error, db: Db) => void) {
+    private static connect(result: (error: Error, db: Db) => void) {
         MongoClient.connect(connStr, { useNewUrlParser: true }, (err, client) => {
             this.db = client.db(dbName);
             this.isConnected = true;
diff --git a/packages/cc-server-ioc/src/index.ts b/packages/cc-server-ioc/src/index.ts
index f325c09..08b6b72 100644
--- a/packages/cc-server-ioc/src/index.ts
+++ b/packages/cc-server-ioc/src/index.ts
@@ -1,5 +1,5 @@
 import "reflect-metadata";
-import { Container, inject } from 'inversify';
+import { Container, inject, interfaces } from 'inversify';
 import { autoProvide, provide, fluentProvide, buildProviderModule } from 'inversify-binding-decorators';
 
 let container = new Container();
@@ -7,13 +7,13 @@ let container = new Container();
 // a module to be loaded by the container
 // container.load(buildProviderModule());
 
-const provideNamed = (identifier, name) => {
+const provideNamed = (identifier: interfaces.ServiceIdentifier<any>, name: string) => {
     return fluentProvide(identifier)
         .whenTargetNamed(name)
         .done();
 };
 
-const provideSingleton = (identifier: any) => {
+const provideSingleton = (identifier: interfaces.ServiceIdentifier<any>) => {
     return fluentProvide(identifier)
         .inSingletonScope()
         .done();
diff --git a/tsconfig.json b/tsconfig.json
index de0e965..f754065 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,6 +6,7 @@
         "module": "commonjs",
         "sourceMap": true,
         "declaration": true,
+        "noImplicitAny": true,
         "allowUnreachableCode": true,
         "experimentalDecorators": true,
         "emitDecoratorMetadata": true