diff --git a/src/body.rs b/src/body.rs
index 30b2b2a..85888e3 100644
--- a/src/body.rs
+++ b/src/body.rs
@@ -7,17 +7,12 @@ use crate::response::DEFAULT_CHARACTER_SET;
 #[cfg(feature = "charset")]
 use encoding_rs::Encoding;
 
-#[cfg(feature = "json")]
-use super::SerdeValue;
-
 /// The different kinds of bodies to send.
 ///
 /// *Internal API*
 pub(crate) enum Payload<'a> {
     Empty,
     Text(&'a str, String),
-    #[cfg(feature = "json")]
-    JSON(SerdeValue),
     Reader(Box<dyn Read + 'a>),
     Bytes(&'a [u8]),
 }
@@ -27,8 +22,6 @@ impl fmt::Debug for Payload<'_> {
         match self {
             Payload::Empty => write!(f, "Empty"),
             Payload::Text(t, _) => write!(f, "{}", t),
-            #[cfg(feature = "json")]
-            Payload::JSON(_) => write!(f, "JSON"),
             Payload::Reader(_) => write!(f, "Reader"),
             Payload::Bytes(v) => write!(f, "{:?}", v),
         }
@@ -89,13 +82,6 @@ impl<'a> Payload<'a> {
                 let cursor = Cursor::new(bytes);
                 SizedReader::new(BodySize::Known(len as u64), Box::new(cursor))
             }
-            #[cfg(feature = "json")]
-            Payload::JSON(v) => {
-                let bytes = serde_json::to_vec(&v).expect("Bad JSON in payload");
-                let len = bytes.len();
-                let cursor = Cursor::new(bytes);
-                SizedReader::new(BodySize::Known(len as u64), Box::new(cursor))
-            }
             Payload::Reader(read) => SizedReader::new(BodySize::Unknown, read),
             Payload::Bytes(bytes) => {
                 let len = bytes.len();
diff --git a/src/request.rs b/src/request.rs
index 33d62bd..e98a6ed 100644
--- a/src/request.rs
+++ b/src/request.rs
@@ -9,9 +9,6 @@ use crate::unit::{self, Unit};
 use crate::Response;
 use crate::{agent::Agent, error::Error};
 
-#[cfg(feature = "json")]
-use super::SerdeValue;
-
 pub type Result<T> = std::result::Result<T, Error>;
 
 /// Request instances are builders that creates a request.
@@ -140,11 +137,15 @@ impl Request {
     /// # }
     /// ```
     #[cfg(feature = "json")]
-    pub fn send_json(mut self, data: SerdeValue) -> Result<Response> {
+    pub fn send_json(mut self, data: impl serde::Serialize) -> Result<Response> {
         if self.header("Content-Type").is_none() {
             self = self.set("Content-Type", "application/json");
         }
-        self.do_call(Payload::JSON(data))
+
+        let json_bytes = serde_json::to_vec(&data)
+            .expect("Failed to serialze data passed to send_json into JSON");
+
+        self.do_call(Payload::Bytes(&json_bytes))
     }
 
     /// Send data as bytes.
diff --git a/src/test/body_send.rs b/src/test/body_send.rs
index a254835..d64fac6 100644
--- a/src/test/body_send.rs
+++ b/src/test/body_send.rs
@@ -38,10 +38,10 @@ fn content_length_on_json() {
     let mut json = SerdeMap::new();
     json.insert(
         "Hello".to_string(),
-        SerdeValue::String("World!!!".to_string()),
+        serde_json::Value::String("World!!!".to_string()),
     );
     let resp = post("test://host/content_length_on_json")
-        .send_json(SerdeValue::Object(json))
+        .send_json(serde_json::Value::Object(json))
         .unwrap();
     let vec = resp.as_write_vec();
     let s = String::from_utf8_lossy(&vec);
@@ -90,10 +90,10 @@ fn content_type_on_json() {
     let mut json = SerdeMap::new();
     json.insert(
         "Hello".to_string(),
-        SerdeValue::String("World!!!".to_string()),
+        serde_json::Value::String("World!!!".to_string()),
     );
     let resp = post("test://host/content_type_on_json")
-        .send_json(SerdeValue::Object(json))
+        .send_json(serde_json::Value::Object(json))
         .unwrap();
     let vec = resp.as_write_vec();
     let s = String::from_utf8_lossy(&vec);
@@ -109,11 +109,11 @@ fn content_type_not_overriden_on_json() {
     let mut json = SerdeMap::new();
     json.insert(
         "Hello".to_string(),
-        SerdeValue::String("World!!!".to_string()),
+        serde_json::Value::String("World!!!".to_string()),
     );
     let resp = post("test://host/content_type_not_overriden_on_json")
         .set("content-type", "text/plain")
-        .send_json(SerdeValue::Object(json))
+        .send_json(serde_json::Value::Object(json))
         .unwrap();
     let vec = resp.as_write_vec();
     let s = String::from_utf8_lossy(&vec);