diff --git a/Cargo.toml b/Cargo.toml
index b6067c1..d20106f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,12 +17,13 @@ default = ["std"]
 std = ["rand"]
 
 [dependencies]
-serde = { version = "1.0", features = ["derive"], optional = true }
+serde = { version = "1.0", optional = true }
 rand = { version = "0.8", optional = true }
 uuid = { version = "1.1", optional = true }
 
 [dev-dependencies]
 bencher = "0.1"
+serde_derive = "1.0"
 
 [[bench]]
 name = "bench"
diff --git a/src/serde.rs b/src/serde.rs
index 829a6bf..f6b221f 100644
--- a/src/serde.rs
+++ b/src/serde.rs
@@ -41,7 +41,7 @@ impl<'de> Deserialize<'de> for Ulid {
 /// ```
 /// # use ulid::Ulid;
 /// # use ulid::serde::ulid_as_u128;
-/// # use serde::{Serialize, Deserialize};
+/// # use serde_derive::{Serialize, Deserialize};
 /// #[derive(Serialize, Deserialize)]
 /// struct U128Example {
 ///     #[serde(with = "ulid_as_u128")]
@@ -81,7 +81,7 @@ pub mod ulid_as_u128 {
 /// ```
 /// # use ulid::Ulid;
 /// # use ulid::serde::ulid_as_uuid;
-/// # use serde::{Serialize, Deserialize};
+/// # use serde_derive::{Serialize, Deserialize};
 /// #[derive(Serialize, Deserialize)]
 /// struct UuidExample {
 ///     #[serde(with = "ulid_as_uuid")]