diff --git a/test/bson_binary_vector/float32.json b/test/bson_binary_vector/float32.json
index 845f504ff3..72dafce10f 100644
--- a/test/bson_binary_vector/float32.json
+++ b/test/bson_binary_vector/float32.json
@@ -32,7 +32,7 @@
     {
       "description": "Infinity Vector FLOAT32",
       "valid": true,
-      "vector": ["-inf", 0.0, "inf"],
+      "vector": [{"$numberDouble": "-Infinity"}, 0.0, {"$numberDouble": "Infinity"} ],
       "dtype_hex": "0x27",
       "dtype_alias": "FLOAT32",
       "padding": 0,
diff --git a/test/test_bson_binary_vector.py b/test/test_bson_binary_vector.py
index a49f515fea..9bfdcbfb9a 100644
--- a/test/test_bson_binary_vector.py
+++ b/test/test_bson_binary_vector.py
@@ -16,12 +16,11 @@
 
 import binascii
 import codecs
-import json
 import struct
 from pathlib import Path
 from test import unittest
 
-from bson import decode, encode
+from bson import decode, encode, json_util
 from bson.binary import Binary, BinaryVectorDtype
 
 _TEST_PATH = Path(__file__).parent / "bson_binary_vector"
@@ -62,9 +61,6 @@ def run_test(self):
                 cB_exp = binascii.unhexlify(canonical_bson_exp.encode("utf8"))
                 decoded_doc = decode(cB_exp)
                 binary_obs = decoded_doc[test_key]
-                # Handle special float cases like '-inf'
-                if dtype_exp in [BinaryVectorDtype.FLOAT32]:
-                    vector_exp = [float(x) for x in vector_exp]
 
                 # Test round-tripping canonical bson.
                 self.assertEqual(encode(decoded_doc), cB_exp, description)
@@ -104,7 +100,7 @@ def run_test(self):
 def create_tests():
     for filename in _TEST_PATH.glob("*.json"):
         with codecs.open(str(filename), encoding="utf-8") as test_file:
-            test_method = create_test(json.load(test_file))
+            test_method = create_test(json_util.loads(test_file.read()))
         setattr(TestBSONBinaryVector, "test_" + filename.stem, test_method)