diff --git a/Cargo.toml b/Cargo.toml
index 0463a78..0002a03 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ rand = { version = "0.9.1" }
 time = { version = "0.3.41", features = ["formatting", "macros", "parsing", "serde"] }
 uuid = { version = "1.17.0", features = ["v4", "serde"] }
 josekit = { version = "0.10.3" }
-utoipa = { version = "5.4.0", features = ["uuid"] }
+utoipa = { version = "5.4.0", features = ["uuid", "time"] }
 
 [dev-dependencies]
 tempfile = { version = "3.20.0" }