diff --git a/geoutils/_typing.py b/geoutils/_typing.py
index 4890766e..97a594a7 100644
--- a/geoutils/_typing.py
+++ b/geoutils/_typing.py
@@ -6,9 +6,6 @@
 
 import numpy as np
 
-# Mypy has issues with the builtin Number type (https://github.com/python/mypy/issues/3186)
-Number = Union[int, float, np.integer[Any], np.floating[Any]]
-
 # Only for Python >= 3.9
 if sys.version_info.minor >= 9:
 
@@ -18,6 +15,9 @@
         NDArray,
     )
 
+    # Mypy has issues with the builtin Number type (https://github.com/python/mypy/issues/3186)
+    Number = Union[int, float, np.integer[Any], np.floating[Any]]
+
     # Simply define here if they exist
     DTypeLike = DTypeLike
     ArrayLike = ArrayLike
@@ -32,6 +32,9 @@
 # For backward compatibility before Python 3.9
 else:
 
+    # Mypy has issues with the builtin Number type (https://github.com/python/mypy/issues/3186)
+    Number = Union[int, float, np.integer, np.floating]  # type: ignore
+
     # Make an array-like type (since the array-like numpy type only exists in numpy>=1.20)
     ArrayLike = Union[np.ndarray, np.ma.masked_array, List[Any], Tuple[Any]]  # type: ignore
     DTypeLike = Union[str, type, np.dtype]  # type: ignore