diff --git a/Cargo.toml b/Cargo.toml
index 7405104..4c0cddc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -84,7 +84,7 @@ yaml = ["dep:axum-serde", "axum-serde/yaml"]
 xml = ["dep:axum-serde", "axum-serde/xml"]
 toml = ["dep:axum-serde", "axum-serde/toml"]
 typed_multipart = ["dep:axum_typed_multipart"]
-into_json = ["json", "dep:serde"]
+into_json = ["json", "dep:serde", "garde?/serde"]
 422 = []
 extra = ["dep:axum-extra"]
 extra_typed_path = ["extra", "axum-extra/typed-routing"]