diff --git a/Cargo.toml b/Cargo.toml
index 15794b1..85f83c8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ name = "echo"
 [dependencies]
 axum = { version = "0.6.20", features = ["json", "macros"] }
 clap = { version = "4", features = ["derive", "env"] }
-once_cell = "1.18"
+once_cell = "1.19"
 prometheus = "0.13"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"