diff --git a/src/Stringy.php b/src/Stringy.php
index ebb121d..a46a483 100644
--- a/src/Stringy.php
+++ b/src/Stringy.php
@@ -1698,7 +1698,7 @@ class Stringy implements Countable, IteratorAggregate, ArrayAccess
                         'ᾀ', 'ᾁ', 'ᾂ', 'ᾃ', 'ᾄ', 'ᾅ', 'ᾆ', 'ᾇ', 'ὰ', 'ά',
                         'ᾰ', 'ᾱ', 'ᾲ', 'ᾳ', 'ᾴ', 'ᾶ', 'ᾷ', 'а', 'أ', 'အ',
                         'ာ', 'ါ', 'ǻ', 'ǎ', 'ª', 'ა', 'अ', 'ا', 'ａ', 'ä'],
-            'b'     => ['б', 'β', 'Ъ', 'Ь', 'ب', 'ဗ', 'ბ', 'ｂ'],
+            'b'     => ['б', 'β', 'ب', 'ဗ', 'ბ', 'ｂ'],
             'c'     => ['ç', 'ć', 'č', 'ĉ', 'ċ', 'ｃ'],
             'd'     => ['ď', 'ð', 'đ', 'ƌ', 'ȡ', 'ɖ', 'ɗ', 'ᵭ', 'ᶁ', 'ᶑ',
                         'д', 'δ', 'د', 'ض', 'ဍ', 'ဒ', 'დ', 'ｄ'],
@@ -1814,7 +1814,7 @@ class Stringy implements Countable, IteratorAggregate, ArrayAccess
             'W'     => ['Ω', 'Ώ', 'Ŵ', 'Ｗ'],
             'X'     => ['Χ', 'Ξ', 'Ｘ'],
             'Y'     => ['Ý', 'Ỳ', 'Ỷ', 'Ỹ', 'Ỵ', 'Ÿ', 'Ῠ', 'Ῡ', 'Ὺ', 'Ύ',
-                        'Ы', 'Й', 'Υ', 'Ϋ', 'Ŷ', 'Ｙ'],
+                        'Ы', 'Й', 'Υ', 'Ϋ', 'Ŷ', 'Ｙ', 'Ъ', 'Ь'],
             'Z'     => ['Ź', 'Ž', 'Ż', 'З', 'Ζ', 'Ｚ'],
             'AE'    => ['Æ', 'Ǽ'],
             'Ch'    => ['Ч'],
@@ -1868,6 +1868,10 @@ class Stringy implements Countable, IteratorAggregate, ArrayAccess
             'de' => [
                 ['ä',  'ö',  'ü',  'Ä',  'Ö',  'Ü' ],
                 ['ae', 'oe', 'ue', 'AE', 'OE', 'UE'],
+            ],
+            'bg' => [
+                ['х', 'Х', 'щ', 'Щ', 'ъ', 'Ъ'],
+                ['h', 'H', 'sht', 'SHT', 'a', 'А']
             ]
         ];