diff --git a/app/javascript/controllers/character_counter_controller.js b/app/javascript/controllers/character_counter_controller.js
index 6700b8983..a5c710b6d 100644
--- a/app/javascript/controllers/character_counter_controller.js
+++ b/app/javascript/controllers/character_counter_controller.js
@@ -13,7 +13,7 @@ export default class extends Controller {
   }
 
   update() {
-    let value = this.inputTarget.value.length
+    const value = this.inputTarget.value.length
 
     if (value > this.maxLengthValue) {
       this.counterTarget.classList.add(ERROR_CLASS)