diff --git a/py/torch_tensorrt/_compile.py b/py/torch_tensorrt/_compile.py
index 4d3ab91e32..c26d7a80b7 100644
--- a/py/torch_tensorrt/_compile.py
+++ b/py/torch_tensorrt/_compile.py
@@ -4,7 +4,7 @@
 import logging
 import platform
 from enum import Enum
-from typing import Any, Callable, List, Optional, Sequence, Set
+from typing import Any, Callable, List, Optional, Sequence, Set, Union
 
 import torch
 import torch.fx
@@ -170,7 +170,7 @@ def compile(
     inputs: Optional[Sequence[Input | torch.Tensor | InputTensorSpec]] = None,
     arg_inputs: Optional[Sequence[Sequence[Any]]] = None,
     kwarg_inputs: Optional[dict[Any, Any]] = None,
-    enabled_precisions: Optional[Set[torch.dtype | dtype]] = None,
+    enabled_precisions: Optional[Set[Union[torch.dtype, dtype]]] = None,
     **kwargs: Any,
 ) -> (
     torch.nn.Module | torch.jit.ScriptModule | torch.fx.GraphModule | Callable[..., Any]
@@ -213,7 +213,7 @@ def compile(
     """
 
     input_list = inputs if inputs is not None else []
-    enabled_precisions_set: Set[dtype | torch.dtype] = (
+    enabled_precisions_set: Set[Union[torch.dtype, dtype]] = (
         enabled_precisions
         if enabled_precisions is not None
         else _defaults.ENABLED_PRECISIONS
@@ -308,7 +308,7 @@ def cross_compile_for_windows(
     inputs: Optional[Sequence[Input | torch.Tensor]] = None,
     arg_inputs: Optional[Sequence[Sequence[Any]]] = None,
     kwarg_inputs: Optional[dict[Any, Any]] = None,
-    enabled_precisions: Optional[Set[torch.dtype | dtype]] = None,
+    enabled_precisions: Optional[Set[Union[torch.dtype, dtype]]] = None,
     **kwargs: Any,
 ) -> None:
     """Compile a PyTorch module using TensorRT in Linux for Inference in Windows
@@ -424,7 +424,7 @@ def convert_method_to_trt_engine(
     arg_inputs: Optional[Sequence[Sequence[Any]]] = None,
     kwarg_inputs: Optional[dict[Any, Any]] = None,
     ir: str = "default",
-    enabled_precisions: Optional[Set[torch.dtype | dtype]] = None,
+    enabled_precisions: Optional[Set[Union[torch.dtype, dtype]]] = None,
     **kwargs: Any,
 ) -> bytes:
     """Convert a TorchScript module method to a serialized TensorRT engine
diff --git a/py/torch_tensorrt/dynamo/_compiler.py b/py/torch_tensorrt/dynamo/_compiler.py
index d7092f1e0f..6434afe248 100644
--- a/py/torch_tensorrt/dynamo/_compiler.py
+++ b/py/torch_tensorrt/dynamo/_compiler.py
@@ -993,9 +993,9 @@ def convert_exported_program_to_serialized_trt_engine(
     *,
     arg_inputs: Optional[Sequence[Sequence[Any]]] = None,
     kwarg_inputs: Optional[dict[Any, Any]] = None,
-    enabled_precisions: (
-        Set[torch.dtype | dtype] | Tuple[torch.dtype | dtype]
-    ) = _defaults.ENABLED_PRECISIONS,
+    enabled_precisions: Union[
+        Set[Union[torch.dtype, dtype]], Tuple[Union[torch.dtype, dtype]]
+    ] = _defaults.ENABLED_PRECISIONS,
     assume_dynamic_shape_support: bool = _defaults.ASSUME_DYNAMIC_SHAPE_SUPPORT,
     workspace_size: int = _defaults.WORKSPACE_SIZE,
     min_block_size: int = _defaults.MIN_BLOCK_SIZE,
diff --git a/py/torch_tensorrt/dynamo/runtime/_MutableTorchTensorRTModule.py b/py/torch_tensorrt/dynamo/runtime/_MutableTorchTensorRTModule.py
index 1ad118facc..85a31b9736 100644
--- a/py/torch_tensorrt/dynamo/runtime/_MutableTorchTensorRTModule.py
+++ b/py/torch_tensorrt/dynamo/runtime/_MutableTorchTensorRTModule.py
@@ -69,7 +69,7 @@ def __init__(
         strict: bool = True,
         allow_complex_guards_as_runtime_asserts: bool = False,
         weight_streaming_budget: Optional[int] = None,
-        enabled_precisions: Optional[Set[torch.dtype | dtype]] = None,
+        enabled_precisions: Optional[Set[Union[torch.dtype, dtype]]] = None,
         **kwargs: Any,
     ) -> None:
         """
diff --git a/py/torch_tensorrt/ts/_compile_spec.py b/py/torch_tensorrt/ts/_compile_spec.py
index 5d6d27e4ad..6016fe87c5 100644
--- a/py/torch_tensorrt/ts/_compile_spec.py
+++ b/py/torch_tensorrt/ts/_compile_spec.py
@@ -1,8 +1,9 @@
 from __future__ import annotations
 
 from copy import deepcopy
-from typing import Any, Dict, List, Optional, Set
+from typing import Any, Dict, List, Optional, Set, Union
 
+import tensorrt as trt
 import torch
 import torch_tensorrt._C.ts as _ts_C
 from torch_tensorrt import _C
@@ -13,8 +14,6 @@
 from torch_tensorrt.ts._Input import TorchScriptInput
 from torch_tensorrt.ts.logging import Level, log
 
-import tensorrt as trt
-
 
 def _internal_input_to_torch_class_input(i: _C.Input) -> torch.classes.tensorrt._Input:
     clone = torch.classes.tensorrt._Input()
@@ -310,7 +309,7 @@ def TensorRTCompileSpec(
     device: Optional[torch.device | Device] = None,
     disable_tf32: bool = False,
     sparse_weights: bool = False,
-    enabled_precisions: Optional[Set[torch.dtype | dtype]] = None,
+    enabled_precisions: Optional[Set[Union[torch.dtype, dtype]]] = None,
     refit: bool = False,
     debug: bool = False,
     capability: EngineCapability = EngineCapability.STANDARD,
diff --git a/py/torch_tensorrt/ts/_compiler.py b/py/torch_tensorrt/ts/_compiler.py
index 3d1406c158..114398f010 100644
--- a/py/torch_tensorrt/ts/_compiler.py
+++ b/py/torch_tensorrt/ts/_compiler.py
@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import warnings
-from typing import Any, List, Optional, Sequence, Set, Tuple
+from typing import Any, List, Optional, Sequence, Set, Tuple, Union
 
 import torch
 import torch_tensorrt._C.ts as _C
@@ -18,7 +18,7 @@ def compile(
     device: Device = Device._current_device(),
     disable_tf32: bool = False,
     sparse_weights: bool = False,
-    enabled_precisions: Optional[Set[torch.dtype | dtype]] = None,
+    enabled_precisions: Optional[Set[Union[torch.dtype, dtype]]] = None,
     refit: bool = False,
     debug: bool = False,
     capability: EngineCapability = EngineCapability.STANDARD,
@@ -172,7 +172,7 @@ def convert_method_to_trt_engine(
     device: Device = Device._current_device(),
     disable_tf32: bool = False,
     sparse_weights: bool = False,
-    enabled_precisions: Optional[Set[torch.dtype | dtype]] = None,
+    enabled_precisions: Optional[Set[Union[torch.dtype, dtype]]] = None,
     refit: bool = False,
     debug: bool = False,
     capability: EngineCapability = EngineCapability.STANDARD,