diff --git a/src/container-instance.class.ts b/src/container-instance.class.ts
index 6dbf848a..b0005f25 100644
--- a/src/container-instance.class.ts
+++ b/src/container-instance.class.ts
@@ -147,8 +147,8 @@ export class ContainerInstance {
    */
   getAsync<T>(identifier: ServiceIdentifier<T>): Promise<T> {
     const globalContainer = Container.of(undefined);
-    let service = globalContainer.findService(identifier);
-    let scopedService = this.findService(identifier);
+    const service = globalContainer.findService(identifier);
+    const scopedService = this.findService(identifier);
 
     if (service && service.global === true) return this.getServiceValueAsync(identifier, service);
 
@@ -472,7 +472,7 @@ export class ContainerInstance {
       if (service.factory instanceof Array) {
         // use special [Type, "create"] syntax to allow factory services
         // in this case Type instance will be obtained from Container and its method "create" will be called
-        value = ((await this.getAsync(service.factory[0])) as any)[service.factory[1]](...params);
+        value = (await this.getAsync(service.factory[0]))[service.factory[1]](...params);
       } else {
         // regular factory function
         value = service.factory(...params, this);
@@ -488,6 +488,7 @@ export class ContainerInstance {
       // need to be injected, and user can use provided container to get instances he needs
       params.push(this);
 
+      // eslint-disable-next-line prefer-spread
       value = new (type.bind.apply(type, params))();
     }
 
diff --git a/src/error/MissingInitializedPromiseError.ts b/src/error/MissingInitializedPromiseError.ts
index 21cc2f4d..7bd95428 100644
--- a/src/error/MissingInitializedPromiseError.ts
+++ b/src/error/MissingInitializedPromiseError.ts
@@ -2,17 +2,18 @@
  * Thrown when user improperly uses the asyncInitialization Service option.
  */
 export class MissingInitializedPromiseError extends Error {
-    name = "MissingInitializedPromiseError";
+  name = 'MissingInitializedPromiseError';
 
-    constructor(value: any) {
-        super(
-          (value.initialized
-              ? `asyncInitialization: true was used, but ${value.name}#initialized is not a Promise. `
-              : `asyncInitialization: true was used, but ${value.name}#initialized is undefined. `) +
-          `You will need to either extend the abstract AsyncInitializedService class, or assign ` +
-          `${value.name}#initialized to a Promise in your class' constructor that resolves when all required ` +
-          `initialization is complete.`
-        );
-        Object.setPrototypeOf(this, MissingInitializedPromiseError.prototype);
-    }
+  // TODO: User proper type
+  constructor(value: { name: string; initialized: boolean }) {
+    super(
+      (value.initialized
+        ? `asyncInitialization: true was used, but ${value.name}#initialized is not a Promise. `
+        : `asyncInitialization: true was used, but ${value.name}#initialized is undefined. `) +
+        `You will need to either extend the abstract AsyncInitializedService class, or assign ` +
+        `${value.name}#initialized to a Promise in your class' constructor that resolves when all required ` +
+        `initialization is complete.`
+    );
+    Object.setPrototypeOf(this, MissingInitializedPromiseError.prototype);
+  }
 }
diff --git a/src/types/AsyncInitializedService.ts b/src/types/AsyncInitializedService.ts
index 980aaff6..d4ad4b51 100644
--- a/src/types/AsyncInitializedService.ts
+++ b/src/types/AsyncInitializedService.ts
@@ -2,11 +2,11 @@
  * Extend when declaring a service with asyncInitialization: true flag.
  */
 export abstract class AsyncInitializedService {
-    public initialized: Promise<any>;
+  public initialized: Promise<any>;
 
-    constructor() {
-        this.initialized = this.initialize();
-    }
+  constructor() {
+    this.initialized = this.initialize();
+  }
 
-    protected abstract initialize(): Promise<any>;
+  protected abstract initialize(): Promise<any>;
 }