diff --git a/promkit-async/Cargo.toml b/promkit-async/Cargo.toml
index 446a3476..947975c3 100644
--- a/promkit-async/Cargo.toml
+++ b/promkit-async/Cargo.toml
@@ -17,5 +17,5 @@ anyhow = "1.0.81"
 crossterm = { version = "0.27.0", features = ["use-dev-tty", "event-stream"] }
 futures = "0.3.30"
 futures-timer = "3.0.3"
-promkit = "0.4.0"
+promkit = "=0.4.0"
 tokio = { version = "1.36.0", features = ["full"] }