diff --git a/src/operations/categoryChart.component.ts b/src/operations/categoryChart.component.ts
index d041a36..5b0bd2b 100644
--- a/src/operations/categoryChart.component.ts
+++ b/src/operations/categoryChart.component.ts
@@ -8,8 +8,6 @@ import {
   OnInit, OnChanges
 } from '@angular/core';
 
-import { Logger } from '@nsalaun/ng-logger';
-
 import { Account } from '../accounts/account';
 import { CategoryService } from './category.service';
 
@@ -27,7 +25,6 @@ export class CategoryChartComponent implements OnInit, OnChanges {
   constructor(
     private elementRef: ElementRef,
     private categoryService: CategoryService,
-    private logger: Logger,
   ) {}
 
   loadData(account: Account) {
diff --git a/src/operations/index.ts b/src/operations/index.ts
index 47d6a20..7c42883 100644
--- a/src/operations/index.ts
+++ b/src/operations/index.ts
@@ -25,22 +25,11 @@ import {
     downgradeComponent
 } from '@angular/upgrade/static';
 
-import { ToastrService } from 'ngx-toastr';
-
-var ngResource       = require('angular-resource'),
-    ngStrap          = require('angular-strap');
-
 import accountModule from '@accountant/accounts';
 
-import { BalanceChartComponent } from './balanceChart.component';
-import { CategoryChartComponent } from './categoryChart.component';
-import { OperationService } from './operation.service';
-
 import { OperationListComponent } from './operationList.component';
 
 export default angular.module('accountant.operations', [
-    ngResource,
-    ngStrap,
     accountModule,
 ])