diff --git a/gql/transport/requests.py b/gql/transport/requests.py
index 238dcc26..e27848f4 100644
--- a/gql/transport/requests.py
+++ b/gql/transport/requests.py
@@ -25,7 +25,7 @@ def __init__(
         headers=None,  # type: Dict[str, Any]
         cookies=None,  # type: Union[Dict[str, Any], RequestsCookieJar]
         auth=None,  # type: AuthBase
-        use_json=False,  # type: bool
+        use_json=True,  # type: bool
         timeout=None,  # type: int
         verify=True,  # type: bool
         retries=0,  # type: int