diff --git a/src/services/index.js b/src/services/index.js
index f71ab58..65dc649 100644
--- a/src/services/index.js
+++ b/src/services/index.js
@@ -45,7 +45,10 @@ class ServicesProvider {
     const ProfileServiceProvider = require('../services/profileService');
     const profileService = new ProfileServiceProvider({ models }).provide();
     const OfferServiceProvider = require('../services/offerService');
-    const offerService = new OfferServiceProvider().provide();
+    const offerService = new OfferServiceProvider({
+      models,
+      errors,
+    }).provide();
 
     return {
       invitesService,
diff --git a/src/services/offerService.js b/src/services/offerService.js
index 25f7b6d..b2696aa 100644
--- a/src/services/offerService.js
+++ b/src/services/offerService.js
@@ -1,19 +1,19 @@
 const uuid = require('uuid');
 
-const models = require('../models');
-
-const errors = require('../errors');
-
 class OfferServiceProvider {
+  constructor({ models, errors }) {
+    this.models = models;
+    this.errors = errors;
+  }
   provide() {
-    async function createOffer(publicKey, offerDetails) {
-      const offerCreated = await models.OfferCreated.create({
+    const createOffer = async (publicKey, offerDetails) => {
+      const offerCreated = await this.models.OfferCreated.create({
         uuid: uuid.v7(),
         public_key: publicKey,
         created_at: new Date().toISOString(),
       });
 
-      await models.OfferDetailsSet.create({
+      await this.models.OfferDetailsSet.create({
         uuid: uuid.v7(),
         offer_uuid: offerCreated.uuid,
         wants: offerDetails.wants,
@@ -30,29 +30,31 @@ class OfferServiceProvider {
         are_big_notes_accepted: offerDetails.are_big_notes_accepted,
         created_at: new Date().toISOString(),
       });
-    }
+    };
 
-    async function deleteOffer(offerUuid) {
+    const deleteOffer = async (offerUuid) => {
       const offerExists = Boolean(
-        await models.OfferCreated.findOne({ where: { uuid: offerUuid } })
+        await this.models.OfferCreated.findOne({ where: { uuid: offerUuid } })
       );
       const offerHasBeenDeleted = Boolean(
-        await models.OfferDeleted.findOne({ where: { offer_uuid: offerUuid } })
+        await this.models.OfferDeleted.findOne({
+          where: { offer_uuid: offerUuid },
+        })
       );
 
       if (!offerExists || offerHasBeenDeleted) {
-        throw new errors.NotFoundError(`Could not find the offer.`);
+        throw new this.errors.NotFoundError(`Could not find the offer.`);
       }
 
-      return models.OfferDeleted.create({
+      return this.models.OfferDeleted.create({
         uuid: uuid.v7(),
         offer_uuid: offerUuid,
         created_at: new Date().toISOString(),
       });
-    }
+    };
 
-    async function getOffersByPublicKey(publicKey) {
-      const offers = await models.OfferCreated.findAll({
+    const getOffersByPublicKey = async (publicKey) => {
+      const offers = await this.models.OfferCreated.findAll({
         where: {
           public_key: publicKey,
         },
@@ -67,7 +69,7 @@ class OfferServiceProvider {
       const offersToReturn = [];
       if (offers) {
         for (const someOffer of offers) {
-          const offerDetails = await models.OfferDetailsSet.findOne({
+          const offerDetails = await this.models.OfferDetailsSet.findOne({
             where: {
               offer_uuid: someOffer.uuid,
             },
@@ -96,7 +98,7 @@ class OfferServiceProvider {
       }
 
       return offersToReturn;
-    }
+    };
 
     return { createOffer, getOffersByPublicKey, deleteOffer };
   }