diff --git a/tests/test_json_async.py b/tests/test_json_async.py
index e8dacdc..9a47cbc 100644
--- a/tests/test_json_async.py
+++ b/tests/test_json_async.py
@@ -1,4 +1,8 @@
-from json import JSONDecodeError, dumps
+try:
+    from ujson import JSONDecodeError, dumps
+except ImportError:
+    from json import dumps, JSONDecodeError
+
 from pathlib import Path
 from typing import Any, Union
 
@@ -29,13 +33,13 @@ async def test_json_read_valid(path: Union[str, Path], expected: Any):
 @pytest.mark.parametrize(
     "path, expected",
     [
-        ("tests/data/invalid.json", pytest.raises(JSONDecodeError)),
-        ("tests/data/nonexistent.json", pytest.raises(FileNotFoundError)),
+        ("tests/data/invalid.json", JSONDecodeError),
+        ("tests/data/nonexistent.json", FileNotFoundError),
     ],
 )
 async def test_json_read_invalid(path: Union[str, Path], expected: Any):
-    with expected:
-        assert await json_read(path) == expected
+    with pytest.raises(expected):
+        await json_read(path)
 
 
 @pytest.mark.asyncio
diff --git a/tests/test_json_sync.py b/tests/test_json_sync.py
index 88765c9..65b519d 100644
--- a/tests/test_json_sync.py
+++ b/tests/test_json_sync.py
@@ -1,4 +1,8 @@
-from json import JSONDecodeError, dumps
+try:
+    from ujson import JSONDecodeError, dumps
+except ImportError:
+    from json import dumps, JSONDecodeError
+
 from pathlib import Path
 from typing import Any, Union
 
@@ -27,12 +31,12 @@ def test_json_read_valid(path: Union[str, Path], expected: Any):
 @pytest.mark.parametrize(
     "path, expected",
     [
-        ("tests/data/invalid.json", pytest.raises(JSONDecodeError)),
-        ("tests/data/nonexistent.json", pytest.raises(FileNotFoundError)),
+        ("tests/data/invalid.json", JSONDecodeError),
+        ("tests/data/nonexistent.json", FileNotFoundError),
     ],
 )
 def test_json_read_invalid(path: Union[str, Path], expected: Any):
-    with expected:
+    with pytest.raises(expected):
         assert sync.json_read(path) == expected