diff --git a/src/epub_converter/html_epub_processor.py b/src/epub_converter/html_epub_processor.py
index 97be033..0abd38b 100644
--- a/src/epub_converter/html_epub_processor.py
+++ b/src/epub_converter/html_epub_processor.py
@@ -169,7 +169,9 @@ class HtmlEpubPreprocessor:
 
     @staticmethod
     def _tags_to_correspond_livecarta_tag(chapter_tag: BeautifulSoup,
-                                          rules: List[Dict[str, Union[List[str], str, int, Dict[str, Union[str, int]]]]]):
+                                          rules: List[Dict[str,
+                                                           Union[List[str], str, Dict[str,
+                                                                                      Union[str, List[Dict[str, str]]]]]]]):
         """
         Function to replace all tags to correspond LiveCarta tags
         Parameters
@@ -259,7 +261,10 @@ class HtmlEpubPreprocessor:
                 tag.unwrap()
 
     @staticmethod
-    def _insert_tags_into_correspond_tags(chapter_tag: BeautifulSoup, rules: List[Dict[str, Union[List[str], str, Dict[str, Union[str, int]]]]]):
+    def _insert_tags_into_correspond_tags(chapter_tag: BeautifulSoup,
+                                          rules: List[Dict[str,
+                                                           Union[List[str], str, Dict[str,
+                                                                                      Union[str, List[Dict[str, str]]]]]]]):
         """
         Function inserts tags into correspond tags
         Parameters