diff --git a/Cargo.toml b/Cargo.toml
index d6822f6..349ccfe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,6 @@ r2r_rcl = { path = "r2r_rcl", version = "0.3.1" }
 r2r_msg_gen = { path = "r2r_msg_gen", version = "0.3.2" }
 r2r_actions = { path = "r2r_actions", version = "0.3.1" }
 uuid = { version = "0.8.2", features = ["serde", "v4"] }
-retain_mut = "0.1.5"
 futures = "0.3.19"
 
 [dev-dependencies]
diff --git a/src/action_servers.rs b/src/action_servers.rs
index 0b13558..3e11f26 100644
--- a/src/action_servers.rs
+++ b/src/action_servers.rs
@@ -2,7 +2,6 @@ use futures::channel::{mpsc, oneshot};
 use futures::future::FutureExt;
 use futures::future::{join_all, JoinAll};
 use futures::stream::Stream;
-use retain_mut::RetainMut;
 use std::collections::HashMap;
 use std::ffi::CString;
 use std::mem::MaybeUninit;