diff --git a/python/rmm/rmm/librmm/memory_resource.pxd b/python/rmm/rmm/librmm/memory_resource.pxd
index e133aa78a..6989d783a 100644
--- a/python/rmm/rmm/librmm/memory_resource.pxd
+++ b/python/rmm/rmm/librmm/memory_resource.pxd
@@ -17,7 +17,7 @@
 from builtins import BaseException
 
 from libc.stddef cimport size_t
-from libc.stdint cimport int8_t, int64_t
+from libc.stdint cimport int8_t, int32_t, int64_t
 from libcpp cimport bool
 from libcpp.optional cimport optional
 from libcpp.pair cimport pair
@@ -108,13 +108,11 @@ cdef extern from "rmm/mr/device/cuda_async_memory_resource.hpp" \
             optional[size_t] release_threshold,
             optional[allocation_handle_type] export_handle_type) except +
 
-# TODO: when we adopt Cython 3.0 use enum class
 cdef extern from "rmm/mr/device/cuda_async_memory_resource.hpp" \
         namespace \
-        "rmm::mr::cuda_async_memory_resource::allocation_handle_type" \
+        "rmm::mr::cuda_async_memory_resource" \
         nogil:
-    enum allocation_handle_type \
-            "rmm::mr::cuda_async_memory_resource::allocation_handle_type":
+    cpdef enum class allocation_handle_type(int32_t):
         none
         posix_file_descriptor
         win32
diff --git a/python/rmm/rmm/pylibrmm/memory_resource.pyx b/python/rmm/rmm/pylibrmm/memory_resource.pyx
index d60e8816e..07b1e1f69 100644
--- a/python/rmm/rmm/pylibrmm/memory_resource.pyx
+++ b/python/rmm/rmm/pylibrmm/memory_resource.pyx
@@ -22,7 +22,7 @@ from collections import defaultdict
 cimport cython
 from cython.operator cimport dereference as deref
 from libc.stddef cimport size_t
-from libc.stdint cimport int8_t, uintptr_t
+from libc.stdint cimport int8_t, int32_t, uintptr_t
 from libcpp cimport bool
 from libcpp.memory cimport make_unique, unique_ptr
 from libcpp.optional cimport optional
@@ -57,17 +57,14 @@ from rmm.librmm.memory_resource cimport (
     cuda_memory_resource,
     deallocate_callback_t,
     device_memory_resource,
-    fabric as c_allocation_handle_type_fabric,
     failure_callback_resource_adaptor,
     failure_callback_t,
     fixed_size_memory_resource,
     limiting_resource_adaptor,
     logging_resource_adaptor,
     managed_memory_resource,
-    none as c_allocation_handle_type_none,
     percent_of_free_device_memory as c_percent_of_free_device_memory,
     pool_memory_resource,
-    posix_file_descriptor as c_allocation_handle_type_posix_file_descriptor,
     prefetch_resource_adaptor,
     sam_headroom_memory_resource,
     statistics_resource_adaptor,
@@ -192,16 +189,16 @@ cdef class CudaAsyncMemoryResource(DeviceMemoryResource):
 
         # If IPC or fabric memory handles are enabled but not supported, the
         # constructor below will raise an error from C++.
-        cdef allocation_handle_type descriptor = c_allocation_handle_type_none
+        cdef allocation_handle_type descriptor = allocation_handle_type.none
         if enable_ipc:
             descriptor = <allocation_handle_type>(
-                <int>descriptor |
-                <int>c_allocation_handle_type_posix_file_descriptor
+                <int32_t?>descriptor |
+                <int32_t?>allocation_handle_type.posix_file_descriptor
             )
         if enable_fabric:
             descriptor = <allocation_handle_type>(
-                <int>descriptor |
-                <int>c_allocation_handle_type_fabric
+                <int32_t?>descriptor |
+                <int32_t?>allocation_handle_type.fabric
             )
 
         cdef optional[allocation_handle_type] c_export_handle_type = (