diff --git a/Cargo.toml b/Cargo.toml
index 167d52a..838b35f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -48,6 +48,7 @@ axum = "0.7"
 tower = "0.4"
 tower-http = { version = "0.5", features = ["cors", "fs", "trace"] }
 hyper = { version = "1.0", features = ["full"] }
+once_cell = "1.19.0"
 
 [dev-dependencies]
 tempfile = "3.3.0"