diff --git a/.ruff-excludes.toml b/.ruff-excludes.toml
index 311caeda1939..95a4d3961c59 100644
--- a/.ruff-excludes.toml
+++ b/.ruff-excludes.toml
@@ -437,7 +437,6 @@
 ]
 "./scripts/dts/python-devicetree/src/devicetree/dtlib.py" = [
     "I001",     # https://docs.astral.sh/ruff/rules/unsorted-imports
-    "UP007",    # https://docs.astral.sh/ruff/rules/non-pep604-annotation
     "UP035",    # https://docs.astral.sh/ruff/rules/deprecated-import
     "UP037",    # https://docs.astral.sh/ruff/rules/quoted-annotation
 ]
diff --git a/scripts/dts/python-devicetree/src/devicetree/dtlib.py b/scripts/dts/python-devicetree/src/devicetree/dtlib.py
index 948dfd3c8b30..1ff3e5e68c74 100644
--- a/scripts/dts/python-devicetree/src/devicetree/dtlib.py
+++ b/scripts/dts/python-devicetree/src/devicetree/dtlib.py
@@ -20,9 +20,8 @@
 import string
 import sys
 import textwrap
-from typing import (Any, Iterable,
-                    NamedTuple, NoReturn, Optional,
-                    TYPE_CHECKING, Union)
+from typing import (Any, Iterable, NamedTuple,
+                    NoReturn, Optional, TYPE_CHECKING)
 
 # NOTE: tests/test_dtlib.py is the test suite for this library.
 
@@ -674,7 +673,7 @@ class _FileStackElt(NamedTuple):
     contents: str
     pos: int
 
-_TokVal = Union[int, str]
+_TokVal = int | str
 
 class _Token(NamedTuple):
     id: int