diff --git a/app/index.js b/app/index.js
index 9c1add9..f1ce2cc 100644
--- a/app/index.js
+++ b/app/index.js
@@ -498,13 +498,13 @@ async function loginF95(browser, username, password) {
   let message = "";
 
   // Check if the user is logged in
-  let success = await page.evaluate(
+  const success = await page.evaluate(
     /* istanbul ignore next */ (selector) =>
       document.querySelector(selector) !== null,
     selectorK.AVATAR_INFO
   );
 
-  let errorMessageExists = await page.evaluate(
+  const errorMessageExists = await page.evaluate(
     /* istanbul ignore next */
     (selector) =>
     document.querySelector(selector) !== null,
diff --git a/app/scripts/url-helper.js b/app/scripts/url-helper.js
index 5669ac3..221a56c 100644
--- a/app/scripts/url-helper.js
+++ b/app/scripts/url-helper.js
@@ -52,7 +52,7 @@ module.exports.urlExists = async function (url, checkRedirect) {
   if (!valid) return false;
 
   if (checkRedirect) {
-    let redirectUrl = await exports.getUrlRedirect(url);
+    const redirectUrl = await exports.getUrlRedirect(url);
     if (redirectUrl === url) valid = true;
     else valid = false;
   }
diff --git a/test/index-test.js b/test/index-test.js
index b8ce53e..d406f4e 100644
--- a/test/index-test.js
+++ b/test/index-test.js
@@ -172,8 +172,8 @@ describe("Search game data", function () {
     expect(result, "Without being logged should return null").to.be.null;
   });
   it("Test game serialization", function() {
-    let json = JSON.stringify(testGame);
-    let parsedGameInfo = JSON.parse(json);
+    const json = JSON.stringify(testGame);
+    const parsedGameInfo = JSON.parse(json);
     expect(parsedGameInfo).to.be.equal(testGame);
   });
 });