diff --git a/backend/src/graphql/model/Contribution.ts b/backend/src/graphql/model/Contribution.ts
index cd8c94d74..dc1dd39e9 100644
--- a/backend/src/graphql/model/Contribution.ts
+++ b/backend/src/graphql/model/Contribution.ts
@@ -2,7 +2,6 @@ import { ObjectType, Field, Int } from 'type-graphql'
 import Decimal from 'decimal.js-light'
 import { Contribution as dbContribution } from '@entity/Contribution'
 import { User } from './User'
-import CONFIG from '@/config'
 
 @ObjectType()
 export class Contribution {
diff --git a/backend/src/graphql/resolver/ContributionResolver.ts b/backend/src/graphql/resolver/ContributionResolver.ts
index c3b4c2127..6669ef20d 100644
--- a/backend/src/graphql/resolver/ContributionResolver.ts
+++ b/backend/src/graphql/resolver/ContributionResolver.ts
@@ -3,7 +3,7 @@ import { Context, getUser } from '@/server/context'
 import { backendLogger as logger } from '@/server/logger'
 import { Contribution as dbContribution } from '@entity/Contribution'
 import { Arg, Args, Authorized, Ctx, Mutation, Query, Resolver } from 'type-graphql'
-import { IsNull, Not } from '../../../../database/node_modules/typeorm'
+import { IsNull } from '../../../../database/node_modules/typeorm'
 import ContributionArgs from '../arg/ContributionArgs'
 import Paginated from '../arg/Paginated'
 import { Order } from '../enum/Order'