diff --git a/Wrapping/Generators/Python/itk/support/types.py b/Wrapping/Generators/Python/itk/support/types.py
index 7ccfd045370..1cc82850594 100644
--- a/Wrapping/Generators/Python/itk/support/types.py
+++ b/Wrapping/Generators/Python/itk/support/types.py
@@ -140,7 +140,7 @@ def initialize_c_types_once() -> (
         _SS: "itkCType" = itkCType("signed short", "SS", np.dtype(np.int16))
         _SI: "itkCType" = itkCType("signed int", "SI", np.dtype(np.int32))
         _SLL: "itkCType" = itkCType("signed long long", "SLL", np.dtype(np.int64))
-        _B: "itkCType" = itkCType("bool", "B", np.dtype(np.bool))
+        _B: "itkCType" = itkCType("bool", "B", np.dtype(np.bool_))
         return _F, _D, _UC, _US, _UI, _UL, _SL, _LD, _ULL, _SC, _SS, _SI, _SLL, _B