diff --git a/tests/integration/test_httpx.py b/tests/integration/test_httpx.py
index f1661574..a69b6c44 100644
--- a/tests/integration/test_httpx.py
+++ b/tests/integration/test_httpx.py
@@ -298,7 +298,7 @@ def test_text_content_type(tmpdir, httpbin, do_request):
         assert cassette_response.content == response.content
         assert cassette.play_count == 1
         assert isinstance(cassette.responses[0]['content'], str)
-        
+
 @pytest.mark.online
 def test_binary_content_type(tmpdir, httpbin, do_request):
     url = httpbin.url + "/bytes/1024"
@@ -310,4 +310,4 @@ def test_binary_content_type(tmpdir, httpbin, do_request):
         cassette_response = do_request()("GET", url)
         assert cassette_response.content == response.content
         assert cassette.play_count == 1
-        assert isinstance(cassette.responses[0]['content'], bytes)
\ No newline at end of file
+        assert isinstance(cassette.responses[0]['content'], bytes)
diff --git a/vcr/stubs/httpx_stubs.py b/vcr/stubs/httpx_stubs.py
index ddf8e03c..140c0aba 100644
--- a/vcr/stubs/httpx_stubs.py
+++ b/vcr/stubs/httpx_stubs.py
@@ -39,7 +39,7 @@ def _to_serialized_response(httpx_response):
         content = httpx_response.content.decode("utf-8")
     except UnicodeDecodeError:
         content = httpx_response.content
-    
+
     return {
         "status_code": httpx_response.status_code,
         "http_version": httpx_response.http_version,