diff --git a/package.json b/package.json
index d709d15..f388393 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "description": "A flexible library to update collection data programmatically.",
   "keywords": [],
   "license": "MIT",
-  "version": "1.0.0-beta.2",
+  "version": "1.0.0-beta.3",
   "contributors": [
     "Marco Lipparini <developer@liarco.net> (https://www.liarco.net)"
   ],
diff --git a/src/CollectionDataUpdater.ts b/src/CollectionDataUpdater.ts
index 1b0efd6..46de276 100644
--- a/src/CollectionDataUpdater.ts
+++ b/src/CollectionDataUpdater.ts
@@ -1,7 +1,7 @@
-import { BigNumber } from 'ethers';
-import DataUpdaterInterface from './lib/DataUpdaterInterface';
-import RuntimeInterface from './lib/RuntimeInterface';
-import CollectionStatusProviderInterface from './lib/CollectionStatusProviderInterface';
+import { BigNumber } from "ethers";
+import DataUpdaterInterface from "./lib/DataUpdaterInterface";
+import RuntimeInterface from "./lib/RuntimeInterface";
+import CollectionStatusProviderInterface from "./lib/CollectionStatusProviderInterface";
 
 export default class CollectionDataUpdater {
   public constructor (
@@ -27,7 +27,7 @@ export default class CollectionDataUpdater {
 
   public async start(): Promise<void> {
     if (this.runtimes.length === 0) {
-      console.log('No runtime available, waiting for direct calls...');
+      console.log("No runtime available, waiting for direct calls...");
 
       return;
     }
diff --git a/src/index.ts b/src/index.ts
index 296afc5..fb3afb3 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,20 +1,20 @@
-export { default as CollectionDataUpdater } from './CollectionDataUpdater';
+export { default as CollectionDataUpdater } from "./CollectionDataUpdater";
 
 // Interfaces
-export { default as CollectionStatusProviderInterface } from './lib/CollectionStatusProviderInterface';
-export { default as DataUpdaterInterface } from './lib/DataUpdaterInterface';
-export { default as RuntimeInterface } from './lib/RuntimeInterface';
+export { default as CollectionStatusProviderInterface } from "./lib/CollectionStatusProviderInterface";
+export { default as DataUpdaterInterface } from "./lib/DataUpdaterInterface";
+export { default as RuntimeInterface } from "./lib/RuntimeInterface";
 
-export { default as S3ConfigurationInterface } from './lib/Util/S3/S3ConfigurationInterface';
+export { default as S3ConfigurationInterface } from "./lib/Util/S3/S3ConfigurationInterface";
 
 // Implementations
-export { default as ERC721Contract } from './lib/Util/Contracts/ERC721Contract';
+export { default as ERC721Contract } from "./lib/Util/Contracts/ERC721Contract";
 
-export { default as ERC721CollectionStatusProvider } from './lib/CollectionStatusProviders/ERC721CollectionStatusProvider';
-export { default as TestingProvider } from './lib/CollectionStatusProviders/TestingCollectionStatusProvider';
+export { default as ERC721CollectionStatusProvider } from "./lib/CollectionStatusProviders/ERC721CollectionStatusProvider";
+export { default as TestingProvider } from "./lib/CollectionStatusProviders/TestingCollectionStatusProvider";
 
-export { default as S3BasicFileDataUpdater } from './lib/DataUpdaters/S3BasicFileDataUpdater';
-export { default as S3BasicNftMetadataDataUpdater } from './lib/DataUpdaters/S3BasicNftMetadataDataUpdater';
+export { default as S3BasicFileDataUpdater } from "./lib/DataUpdaters/S3BasicFileDataUpdater";
+export { default as S3BasicNftMetadataDataUpdater } from "./lib/DataUpdaters/S3BasicNftMetadataDataUpdater";
 
-export { default as UpdateAllTokensEveryNSecondsRuntime } from './lib/Runtimes/UpdateAllTokensEveryNSecondsRuntime';
-export { default as UpdateTokenOnMintRuntime } from './lib/Runtimes/UpdateTokenOnMintRuntime';
+export { default as UpdateAllTokensEveryNSecondsRuntime } from "./lib/Runtimes/UpdateAllTokensEveryNSecondsRuntime";
+export { default as UpdateTokenOnMintRuntime } from "./lib/Runtimes/UpdateTokenOnMintRuntime";
diff --git a/src/lib/CollectionStatusProviderInterface.ts b/src/lib/CollectionStatusProviderInterface.ts
index 95d819a..6877c58 100644
--- a/src/lib/CollectionStatusProviderInterface.ts
+++ b/src/lib/CollectionStatusProviderInterface.ts
@@ -1,4 +1,4 @@
-import { BigNumber } from 'ethers';
+import { BigNumber } from "ethers";
 
 export default interface CollectionStatusProviderInterface {
   getTokenIds: () => Promise<BigNumber[]>;
diff --git a/src/lib/CollectionStatusProviders/ERC721CollectionStatusProvider.ts b/src/lib/CollectionStatusProviders/ERC721CollectionStatusProvider.ts
index 41f9e28..8de9a0f 100644
--- a/src/lib/CollectionStatusProviders/ERC721CollectionStatusProvider.ts
+++ b/src/lib/CollectionStatusProviders/ERC721CollectionStatusProvider.ts
@@ -1,5 +1,5 @@
-import { BigNumber, Contract } from 'ethers';
-import CollectionStatusProviderInterface from '../CollectionStatusProviderInterface';
+import { BigNumber, Contract } from "ethers";
+import CollectionStatusProviderInterface from "../CollectionStatusProviderInterface";
 
 export default class ERC721CollectionStatusProvider implements CollectionStatusProviderInterface {
   private totalSupply: BigNumber = BigNumber.from(0);
diff --git a/src/lib/CollectionStatusProviders/TestingCollectionStatusProvider.ts b/src/lib/CollectionStatusProviders/TestingCollectionStatusProvider.ts
index 99585ac..bb87567 100644
--- a/src/lib/CollectionStatusProviders/TestingCollectionStatusProvider.ts
+++ b/src/lib/CollectionStatusProviders/TestingCollectionStatusProvider.ts
@@ -1,5 +1,5 @@
-import { BigNumber } from 'ethers';
-import CollectionStatusProviderInterface from '../CollectionStatusProviderInterface';
+import { BigNumber } from "ethers";
+import CollectionStatusProviderInterface from "../CollectionStatusProviderInterface";
 
 export default class TestingCollectionStatusProvider implements CollectionStatusProviderInterface {
   private totalSupply: BigNumber;
diff --git a/src/lib/DataUpdaterInterface.ts b/src/lib/DataUpdaterInterface.ts
index f185a10..d22e6f3 100644
--- a/src/lib/DataUpdaterInterface.ts
+++ b/src/lib/DataUpdaterInterface.ts
@@ -1,4 +1,4 @@
-import { BigNumber } from 'ethers';
+import { BigNumber } from "ethers";
 
 export default interface DataUpdaterInterface {
   updateToken: (tokenId: BigNumber, isRevealed: boolean) => Promise<void>;
diff --git a/src/lib/DataUpdaters/S3BasicFileDataUpdater.ts b/src/lib/DataUpdaters/S3BasicFileDataUpdater.ts
index a13c89c..309ba8b 100644
--- a/src/lib/DataUpdaters/S3BasicFileDataUpdater.ts
+++ b/src/lib/DataUpdaters/S3BasicFileDataUpdater.ts
@@ -1,7 +1,7 @@
-import * as S3 from 'aws-sdk/clients/s3';
-import { BigNumber } from 'ethers';
-import DataUpdaterInterface from '../DataUpdaterInterface';
-import S3ConfigurationInterface from '../Util/S3/S3ConfigurationInterface';
+import * as S3 from "aws-sdk/clients/s3";
+import { BigNumber } from "ethers";
+import DataUpdaterInterface from "../DataUpdaterInterface";
+import S3ConfigurationInterface from "../Util/S3/S3ConfigurationInterface";
 
 export default class S3BasicFileDataUpdater implements DataUpdaterInterface {
   protected s3: S3;
@@ -14,7 +14,7 @@ export default class S3BasicFileDataUpdater implements DataUpdaterInterface {
     protected fileExtension: string,
   ) {
     this.s3 = new S3({
-      apiVersion: 'latest',
+      apiVersion: "latest",
       endpoint: this.s3Config.endpoint,
       credentials: {
         accessKeyId: this.s3Config.accessKey,
@@ -47,7 +47,7 @@ export default class S3BasicFileDataUpdater implements DataUpdaterInterface {
         Bucket: this.s3Config.bucketName,
         CopySource: `${this.s3Config.bucketName}/${this.buildSourceObjectKey(tokenId)}`,
         Key: this.buildDestinationObjectKey(tokenId),
-        ACL: 'public-read',
+        ACL: "public-read",
       }).promise();
     } catch (error) {
       console.error(`Error copying "${this.resourceName}" for token ${tokenId.toString()}.`);
@@ -84,7 +84,7 @@ export default class S3BasicFileDataUpdater implements DataUpdaterInterface {
   }
 
   protected buildObjectKey(tokenId: BigNumber, path: string): string {
-    return `${this.s3Config.pathPrefix}/${path}/${tokenId.toString()}${this.fileExtension}`.replace('//', '/');
+    return `${this.s3Config.pathPrefix}/${path}/${tokenId.toString()}${this.fileExtension}`.replace("//", "/");
   }
 
   protected async destinationDataExists(tokenId: BigNumber): Promise<boolean> {
@@ -96,7 +96,7 @@ export default class S3BasicFileDataUpdater implements DataUpdaterInterface {
 
       return true;
     } catch (error) {
-      if (error.name !== 'NotFound') {
+      if (error.name !== "NotFound") {
         console.error(`Error checking "${this.resourceName}" existence for token ${tokenId.toString()}.`);
         console.error(error);
       }
diff --git a/src/lib/DataUpdaters/S3BasicNftMetadataDataUpdater.ts b/src/lib/DataUpdaters/S3BasicNftMetadataDataUpdater.ts
index e8607dc..4fda641 100644
--- a/src/lib/DataUpdaters/S3BasicNftMetadataDataUpdater.ts
+++ b/src/lib/DataUpdaters/S3BasicNftMetadataDataUpdater.ts
@@ -1,6 +1,6 @@
-import { BigNumber } from 'ethers';
-import S3ConfigurationInterface from '../Util/S3/S3ConfigurationInterface';
-import S3BasicFileDataUpdater from './S3BasicFileDataUpdater';
+import { BigNumber } from "ethers";
+import S3ConfigurationInterface from "../Util/S3/S3ConfigurationInterface";
+import S3BasicFileDataUpdater from "./S3BasicFileDataUpdater";
 
 export default class S3BasicNftMetadataDataUpdater extends S3BasicFileDataUpdater {
   public constructor(
@@ -9,7 +9,7 @@ export default class S3BasicNftMetadataDataUpdater extends S3BasicFileDataUpdate
     sourcePath: string,
     destinationPath: string,
     private metadataUpdater: (tokenId: BigNumber, metadata: any) => any,
-    fileExtension: string = '.json',
+    fileExtension: string = ".json",
   ) {
     super(resourceName, s3Config, sourcePath, destinationPath, fileExtension);
   }
@@ -36,7 +36,7 @@ export default class S3BasicNftMetadataDataUpdater extends S3BasicFileDataUpdate
         Key: this.buildDestinationObjectKey(tokenId),
         ContentType: sourceData.ContentType,
         Body: JSON.stringify(sourceContent, null, 2),
-        ACL: 'public-read',
+        ACL: "public-read",
       }).promise();
     } catch (error) {
       console.error(`Error copying "${this.resourceName}" for token ${tokenId.toString()}.`);
diff --git a/src/lib/RuntimeInterface.ts b/src/lib/RuntimeInterface.ts
index 86a6a2c..14f09c2 100644
--- a/src/lib/RuntimeInterface.ts
+++ b/src/lib/RuntimeInterface.ts
@@ -1,4 +1,4 @@
-import CollectionDataUpdater from '../CollectionDataUpdater';
+import CollectionDataUpdater from "../CollectionDataUpdater";
 
 export default interface RuntimeInterface {
   run: (collectionDataUpdater: CollectionDataUpdater) => Promise<void>;
diff --git a/src/lib/Runtimes/UpdateAllTokensEveryNSecondsRuntime.ts b/src/lib/Runtimes/UpdateAllTokensEveryNSecondsRuntime.ts
index 643da17..6728745 100644
--- a/src/lib/Runtimes/UpdateAllTokensEveryNSecondsRuntime.ts
+++ b/src/lib/Runtimes/UpdateAllTokensEveryNSecondsRuntime.ts
@@ -1,5 +1,5 @@
-import CollectionDataUpdater from '../../CollectionDataUpdater';
-import RuntimeInterface from '../RuntimeInterface';
+import CollectionDataUpdater from "../../CollectionDataUpdater";
+import RuntimeInterface from "../RuntimeInterface";
 
 export default class UpdateAllTokensEveryNSecondsRuntime implements RuntimeInterface {
   public constructor(
diff --git a/src/lib/Runtimes/UpdateTokenOnMintRuntime.ts b/src/lib/Runtimes/UpdateTokenOnMintRuntime.ts
index a01df6f..485b1b9 100644
--- a/src/lib/Runtimes/UpdateTokenOnMintRuntime.ts
+++ b/src/lib/Runtimes/UpdateTokenOnMintRuntime.ts
@@ -1,12 +1,12 @@
-import { BigNumber, ethers } from 'ethers';
-import CollectionDataUpdater from '../../CollectionDataUpdater';
-import ERC721Contract from '../Util/Contracts/ERC721Contract';
-import RuntimeInterface from '../RuntimeInterface';
+import { BigNumber, ethers } from "ethers";
+import CollectionDataUpdater from "../../CollectionDataUpdater";
+import ERC721Contract from "../Util/Contracts/ERC721Contract";
+import RuntimeInterface from "../RuntimeInterface";
 
 export default class UpdateTokenOnMintRuntime implements RuntimeInterface {
   public constructor(
     private contract: ERC721Contract,
-    private fromAddress: string = ethers.utils.getAddress('0x0000000000000000000000000000000000000000'),
+    private fromAddress: string = ethers.utils.getAddress("0x0000000000000000000000000000000000000000"),
   ) {
   }
 
diff --git a/src/lib/Util/Contracts/ERC721Contract.ts b/src/lib/Util/Contracts/ERC721Contract.ts
index 83b81ed..ab91070 100644
--- a/src/lib/Util/Contracts/ERC721Contract.ts
+++ b/src/lib/Util/Contracts/ERC721Contract.ts
@@ -3,14 +3,14 @@ import { JsonRpcProvider } from "@ethersproject/providers";
 
 export default class ERC721Contract extends Contract {
     constructor (address: string, providerOrRpcUrl: JsonRpcProvider|string) {
-      const provider = (typeof providerOrRpcUrl === 'string') ? new JsonRpcProvider(providerOrRpcUrl) : providerOrRpcUrl;
+      const provider = (typeof providerOrRpcUrl === "string") ? new JsonRpcProvider(providerOrRpcUrl) : providerOrRpcUrl;
 
       super(
         address,
         [
-          'function maxSupply() public view returns (uint256)',
-          'function totalSupply() public view returns (uint256)',
-          'event Transfer(address indexed from, address indexed to, uint256 indexed tokenId)',
+          "function maxSupply() public view returns (uint256)",
+          "function totalSupply() public view returns (uint256)",
+          "event Transfer(address indexed from, address indexed to, uint256 indexed tokenId)",
         ],
         provider,
       );