diff --git a/tivars/data.py b/tivars/data.py
index f2be8d1..0885714 100644
--- a/tivars/data.py
+++ b/tivars/data.py
@@ -25,8 +25,9 @@
 import copy
 import inspect
 
+from collections.abc import Callable
 from math import ceil
-from typing import Callable, TypeVar
+from typing import TypeVar
 from warnings import warn
 
 
diff --git a/tivars/flags.py b/tivars/flags.py
index 8c10747..39eae34 100644
--- a/tivars/flags.py
+++ b/tivars/flags.py
@@ -13,9 +13,9 @@
 """
 
 
+from collections.abc import Mapping
 from functools import total_ordering
 from math import ceil
-from typing import Mapping
 from warnings import warn
 
 from .data import *
@@ -80,7 +80,7 @@ class Flags(Converter, dict, Mapping[int, int]):
 
     _T = 'Flags'
 
-    def __init__(self, bitsets: Mapping[int, int] | 'Flags' = None, *, width: int = 8):
+    def __init__(self, bitsets: Mapping[int, int] = None, *, width: int = 8):
         """
         Creates an empty `Flags` instance with a given initial state and width
 
@@ -105,7 +105,7 @@ def __int__(self) -> int:
     def __str__(self) -> str:
         return ''.join([str(bit) for bit in self.values()][::-1])
 
-    def __contains__(self, bitsets: Mapping[int, int] | 'Flags') -> bool:
+    def __contains__(self, bitsets: Mapping[int, int]) -> bool:
         return all(self[bit] == int(bool(bitsets[bit])) for bit in bitsets)
 
     has = __contains__
diff --git a/tivars/flash.py b/tivars/flash.py
index ce44efb..8de7391 100644
--- a/tivars/flash.py
+++ b/tivars/flash.py
@@ -5,7 +5,7 @@
 
 from io import BytesIO
 from sys import version_info
-from typing import BinaryIO, Type
+from typing import BinaryIO
 from warnings import warn
 
 from .data import *
@@ -556,7 +556,7 @@ def checksum(self) -> bytes:
         return self.raw.checksum
 
     @classmethod
-    def get_type(cls, type_id: int) -> Type['TIFlashHeader'] | None:
+    def get_type(cls, type_id: int) -> type['TIFlashHeader'] | None:
         """
         Gets the subclass corresponding to a type ID if one is registered
 
@@ -595,7 +595,7 @@ def next_header_length(stream: BinaryIO) -> int:
         return entry_length
 
     @classmethod
-    def register(cls, var_type: Type['TIFlashHeader'], override: int = None):
+    def register(cls, var_type: type['TIFlashHeader'], override: int = None):
         """
         Registers a subtype with this class for coercion
 
diff --git a/tivars/types/complex.py b/tivars/types/complex.py
index b2087eb..2467b76 100644
--- a/tivars/types/complex.py
+++ b/tivars/types/complex.py
@@ -3,7 +3,6 @@
 """
 
 
-from typing import Type
 from warnings import warn
 
 from tivars.data import *
@@ -204,7 +203,7 @@ def imag_sign_bit(self) -> int:
         """
 
     @property
-    def real_type(self) -> Type['RealEntry']:
+    def real_type(self) -> type['RealEntry']:
         """
         :return: The subclass of `RealEntry` corresponding to this entry's `real_subtype_id`.
         """
@@ -212,7 +211,7 @@ def real_type(self) -> Type['RealEntry']:
         return self.get_type(self.real_subtype_id).real_analogue
 
     @property
-    def imag_type(self) -> Type['RealEntry']:
+    def imag_type(self) -> type['RealEntry']:
         """
         :return: The subclass of `RealEntry` corresponding to this entry's `imag_subtype_id`.
         """
diff --git a/tivars/types/gdb.py b/tivars/types/gdb.py
index 7f3fb62..07eab1a 100644
--- a/tivars/types/gdb.py
+++ b/tivars/types/gdb.py
@@ -6,8 +6,8 @@
 import json
 import os
 
+from collections.abc import Iterator
 from io import BytesIO
-from typing import Iterator
 from warnings import catch_warnings, filterwarnings, warn
 
 from tivars.flags import *
diff --git a/tivars/types/group.py b/tivars/types/group.py
index 64177c1..467873c 100644
--- a/tivars/types/group.py
+++ b/tivars/types/group.py
@@ -3,8 +3,8 @@
 """
 
 
+from collections.abc import Sequence
 from io import BytesIO
-from typing import Sequence
 from warnings import warn
 
 from tivars.data import *
diff --git a/tivars/types/list.py b/tivars/types/list.py
index a4ec1bb..998f74a 100644
--- a/tivars/types/list.py
+++ b/tivars/types/list.py
@@ -5,8 +5,8 @@
 
 import re
 
+from collections.abc import Iterator, Sequence
 from io import BytesIO
-from typing import Iterator, Sequence
 from warnings import warn
 
 from tivars.data import *
diff --git a/tivars/types/matrix.py b/tivars/types/matrix.py
index eedbc06..9eaf849 100644
--- a/tivars/types/matrix.py
+++ b/tivars/types/matrix.py
@@ -3,8 +3,8 @@
 """
 
 
+from collections.abc import Iterator, Sequence
 from io import BytesIO
-from typing import Iterator, Sequence
 from warnings import warn
 
 from tivars.data import *
diff --git a/tivars/types/picture.py b/tivars/types/picture.py
index 5ec02d5..a400d5e 100644
--- a/tivars/types/picture.py
+++ b/tivars/types/picture.py
@@ -4,7 +4,9 @@
 
 
 import re
-from typing import Iterator, Sequence
+
+
+from collections.abc import Iterator, Sequence
 from warnings import warn
 
 from tivars.data import *
diff --git a/tivars/types/real.py b/tivars/types/real.py
index d426acc..fac73d7 100644
--- a/tivars/types/real.py
+++ b/tivars/types/real.py
@@ -8,7 +8,6 @@
 
 from decimal import Decimal, localcontext
 from fractions import Fraction
-from typing import Type
 from warnings import warn
 
 from tivars.data import *
@@ -114,7 +113,7 @@ def sign_bit(self) -> int:
         """
 
     @property
-    def subtype(self) -> Type['RealEntry']:
+    def subtype(self) -> type['RealEntry']:
         """
         :return: The subtype of this real number
         """
diff --git a/tivars/var.py b/tivars/var.py
index 3acf4ae..cf92cad 100644
--- a/tivars/var.py
+++ b/tivars/var.py
@@ -3,9 +3,10 @@
 """
 
 
+from collections.abc import Iterator
 from io import BytesIO
 from sys import version_info
-from typing import BinaryIO, Iterator, Type
+from typing import BinaryIO
 from warnings import warn
 
 from .data import *
@@ -566,7 +567,7 @@ def meta(self) -> bytes:
         return self.raw.calc_data_length + self.raw.type_id + self.raw.name + self.raw.version + self.raw.archived
 
     @classmethod
-    def get_type(cls, type_id: int) -> Type['TIEntry'] | None:
+    def get_type(cls, type_id: int) -> type['TIEntry'] | None:
         """
         Gets the subclass corresponding to a type ID if one is registered
 
@@ -592,7 +593,7 @@ def next_entry_length(stream: BinaryIO) -> int:
         return 2 + meta_length + 2 + data_length
 
     @classmethod
-    def register(cls, var_type: Type['TIEntry'], override: int = None):
+    def register(cls, var_type: type['TIEntry'], override: int = None):
         """
         Registers a subtype with this class for coercion