diff --git a/Cargo.toml b/Cargo.toml
index e311c3d..7632cdb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,11 +16,16 @@ categories = ["web-programming::http-client", "web-programming"]  # https://crat
 all-features = true
 rustdoc-args = ["--cfg", "docsrs"]
 
+[features]
+serde = ["dep:serde" , "dep:serde_derive"]
+
 [dependencies]
 bytes = "1.0.1"
 cookie_store = "^0.20"
 reqwest = { version = "^0.11", default-features = false, features = ["cookies"] }
 url = "2.2.2"
+serde = {version = "1.0.147",  optional = true}
+serde_derive = {version = "1.0.147" , optional = true }
 
 [dev-dependencies]
 tokio-test = "0.4.1"
diff --git a/src/lib.rs b/src/lib.rs
index f194690..6b0fae5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -87,6 +87,8 @@ use std::{
 use bytes::Bytes;
 pub use cookie_store::{CookieStore, RawCookie, RawCookieParseError};
 use reqwest::header::HeaderValue;
+#[cfg(feature = "serde")]
+use serde_derive::{Deserialize, Serialize};
 use url;
 
 fn set_cookies(
@@ -121,6 +123,7 @@ fn cookies(cookie_store: &CookieStore, url: &url::Url) -> Option<HeaderValue> {
 /// A [`cookie_store::CookieStore`] wrapped internally by a [`std::sync::Mutex`], suitable for use in
 /// async/concurrent contexts.
 #[derive(Debug)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct CookieStoreMutex(Mutex<CookieStore>);
 
 impl Default for CookieStoreMutex {
@@ -164,6 +167,7 @@ impl reqwest::cookie::CookieStore for CookieStoreMutex {
 /// A [`cookie_store::CookieStore`] wrapped internally by a [`std::sync::RwLock`], suitable for use in
 /// async/concurrent contexts.
 #[derive(Debug)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct CookieStoreRwLock(RwLock<CookieStore>);
 
 impl Default for CookieStoreRwLock {