diff --git a/example.py b/example.py
index d47a6d0..001e8b6 100644
--- a/example.py
+++ b/example.py
@@ -18,7 +18,7 @@
             t=ValuesAxis[AwareDatetime](values=[datetime.now(tz=timezone.utc)]),
         ),
     ),
-    ranges={"temperature": NdArrayFloat(axisNames=["x", "y", "t"], shape=[1, 1, 1], values=[42.0])},
+    ranges={"temperature": NdArrayFloat(axisNames=["x", "y", "t"], shape=[1, 1, 1], values=["42.0"])},
 )
 
 print(c.model_dump_json(exclude_none=True, indent=4))
diff --git a/tests/test_coverage.py b/tests/test_coverage.py
index d4b02a1..e41b7d5 100644
--- a/tests/test_coverage.py
+++ b/tests/test_coverage.py
@@ -72,6 +72,8 @@ def test_happy_cases(file_name, object_type):
     ("mixed-type-axes.json", Axes, r"Input should be a valid number"),
     ("mixed-type-axes-2.json", Axes, r"Input should be a valid string"),
     ("mixed-type-ndarray-1.json", NdArrayFloat, r"Input should be a valid number"),
+    ("mixed-type-ndarray-1.json", NdArrayStr, r"Input should be 'string'"),
+    ("mixed-type-ndarray-2.json", NdArrayFloat, r"Input should be a valid number"),
     ("mixed-type-ndarray-2.json", NdArrayStr, r"Input should be 'string'"),
     ("mixed-type-ndarray-3.json", NdArrayInt, r"Input should be a valid integer"),
     ("mixed-type-ndarray-3.json", NdArrayFloat, r"Input should be 'float'"),
diff --git a/tests/test_data/coverage-mixed-type-ndarray.json b/tests/test_data/coverage-mixed-type-ndarray.json
index fc54522..e8c1132 100644
--- a/tests/test_data/coverage-mixed-type-ndarray.json
+++ b/tests/test_data/coverage-mixed-type-ndarray.json
@@ -111,7 +111,7 @@
             ],
             "values": [
                 1,
-                2,
+                null,
                 3
             ]
         },
diff --git a/tests/test_data/mixed-type-ndarray-1.json b/tests/test_data/mixed-type-ndarray-1.json
index 2a173e1..3a48cf6 100644
--- a/tests/test_data/mixed-type-ndarray-1.json
+++ b/tests/test_data/mixed-type-ndarray-1.json
@@ -9,7 +9,7 @@
         2
     ],
     "values": [
-        "abc",
+        "42.0",
         123
     ]
 }