diff --git a/README.md b/README.md
index 7f2f228..3d1bf17 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@
  <img src="https://img.shields.io/pub/v/string_extensions?color=637d0d&style=for-the-badge" alt="Version" /> <img src="https://img.shields.io/github/languages/code-size/esentis/string_extensions?color=637d0d&style=for-the-badge&label=size" alt="Version" /></br>
   <a href='https://pub.dev/documentation/string_extensions/latest/string_extensions/MiscExtensions.html'><img src="https://img.shields.io/badge/Check-Documentation-blue?style=for-the-badge&logo=readthedocs" alt="Documentation" /></a><br>
  <img src="https://travis-ci.com/esentis/string_extensions.svg?branch=master" alt="Version" />
+ <img src="https://github.com/esentis/string_extensions/actions/workflows/test.yml/badge.svg"/>
  <a href='https://coveralls.io/github/esentis/string_extensions?branch=master'><img src='https://coveralls.io/repos/github/esentis/string_extensions/badge.svg?branch=master' alt='Coverage Status' /></a>
 </p>
 
diff --git a/lib/string_helpers.dart b/lib/string_helpers.dart
index 4584009..ecaa8dc 100644
--- a/lib/string_helpers.dart
+++ b/lib/string_helpers.dart
@@ -311,6 +311,7 @@ class StringHelpers {
     "Χ",
     "X"
   ];
+
   static Map<String, String> greekToLatin = {
     'ά': 'a',
     'Α': 'a',
@@ -383,12 +384,4 @@ class StringHelpers {
     'Ώ': 'o',
     'ώ': 'o',
   };
-
-  static Map<String, String> lettersToSymbols = {
-    ' ': ' ',
-    '!': 'i',
-    '@': 'a',
-    '\$': 's',
-    '#': 'e'
-  };
 }