diff --git a/avro/core/processor.py b/avro/core/processor.py
index 79c3340..7c30685 100644
--- a/avro/core/processor.py
+++ b/avro/core/processor.py
@@ -4,7 +4,7 @@
 # Import first-party Python libraries.
 import contextlib
 from functools import lru_cache
-from typing import Any, Dict, List, Optional, Tuple
+from typing import Any, Optional
 
 # Import local modules.
 from . import config, validate
@@ -21,7 +21,7 @@
 
 
 @lru_cache(maxsize=128)
-def find_in_remap(text: str, *, reversed: bool = False) -> Tuple[str, bool]:
+def find_in_remap(text: str, *, reversed: bool = False) -> tuple[str, bool]:
     """
     Finds and returns the remapped value for a given text.
 
@@ -47,7 +47,7 @@ def find_in_remap(text: str, *, reversed: bool = False) -> Tuple[str, bool]:
 
 def match_patterns(
     fixed_text: str, cur: int = 0, rule: bool = False, reversed: bool = False
-) -> Dict[str, Any]:
+) -> dict[str, Any]:
     """
     Matches given text at cursor position with rule / non rule patterns.
 
@@ -78,7 +78,7 @@ def match_patterns(
 
 def exact_find_in_pattern(
     fixed_text: str, reversed: bool, cur: int = 0, patterns: Any = PATTERNS
-) -> List[Dict[str, Any]]:
+) -> list[dict[str, Any]]:
     """
     Returns pattern items that match given text, cursor position and pattern.
     """
@@ -124,7 +124,7 @@ def reverse_with_rules(cursor: int, fixed_text: str, text_reversed: str) -> str:
     return text_reversed if not text_reversed else text_reversed + added_suffix
 
 
-def process_rules(rules: Dict[str, Any], fixed_text: str, cur: int = 0, cur_end: int = 1) -> Optional[str]:
+def process_rules(rules: dict[str, Any], fixed_text: str, cur: int = 0, cur_end: int = 1) -> Optional[str]:
     """
     Process rules matched in pattern and returns suitable replacement.
 
diff --git a/avro/main.py b/avro/main.py
index b272df3..b36f9be 100755
--- a/avro/main.py
+++ b/avro/main.py
@@ -12,7 +12,7 @@
 from concurrent.futures import ThreadPoolExecutor, as_completed
 from functools import lru_cache
 from itertools import chain
-from typing import Callable, Generator, List, Tuple, Union
+from typing import Callable, Generator, Union
 
 # Import local modules.
 from .core import processor, validate
@@ -20,7 +20,7 @@
 
 
 # Concurrency helper function for handling multithreaded workloads.
-def _concurrency_helper(func: Callable, params: Tuple[str, ...]) -> List[str]:
+def _concurrency_helper(func: Callable, params: tuple[str, ...]) -> list[str]:
     output = []
 
     with ThreadPoolExecutor() as executor:
@@ -149,7 +149,7 @@ def _reverse_backend_ext(text: str, remap_words: bool) -> str:
 # Primary user-end functions.
 # The parse() function.
 # Used to parse from English Roman script to Bengali in Unicode.
-def parse(*texts: str, bijoy: bool = False, remap_words: bool = True) -> Union[str, List[str]]:
+def parse(*texts: str, bijoy: bool = False, remap_words: bool = True) -> Union[str, list[str]]:
     """
     #### Parses input text, matches and replaces using the Avro Dictionary.
 
@@ -181,7 +181,7 @@ def parse(*texts: str, bijoy: bool = False, remap_words: bool = True) -> Union[s
 
 # The to_bijoy() function.
 # Used to parse from Bengali in Unicode to Bijoy Keyboard format.
-def to_bijoy(*texts: str) -> Union[str, List[str]]:
+def to_bijoy(*texts: str) -> Union[str, list[str]]:
     """
     #### Converts input text (Avro, Unicode) to Bijoy Keyboard format (ASCII).
 
@@ -205,7 +205,7 @@ def to_bijoy(*texts: str) -> Union[str, List[str]]:
 
 # The to_unicode() function.
 # Used to parse from Bijoy Keyboard format to Bengali in Unicode.
-def to_unicode(*texts: str) -> Union[str, List[str]]:
+def to_unicode(*texts: str) -> Union[str, list[str]]:
     """
     #### Converts input text (Bijoy Keyboard, ASCII) to Unicode (Avro Keyboard format).
 
@@ -229,7 +229,7 @@ def to_unicode(*texts: str) -> Union[str, List[str]]:
 
 # The reverse() function.
 # Used to parse from Bengali in Unicode to English Roman script.
-def reverse(*texts: str, from_bijoy: bool = False, remap_words: bool = True) -> Union[str, List[str]]:
+def reverse(*texts: str, from_bijoy: bool = False, remap_words: bool = True) -> Union[str, list[str]]:
     """
     #### Reverses input text to Roman script typed in English.
 
diff --git a/avro/resources/dictionary.py b/avro/resources/dictionary.py
index 99ee998..c6e846f 100644
--- a/avro/resources/dictionary.py
+++ b/avro/resources/dictionary.py
@@ -2,10 +2,10 @@
 
 
 # Import first-party Python modules.
-from typing import Any, Dict
+from typing import Any
 
 # The Avro Dictionary, implemented in Python.
-DICT: Dict[str, Any] = {
+DICT: dict[str, Any] = {
     # Metadata.
     "meta": {
         "file_name": "dictionary.py",