diff --git a/color-module/Cargo.toml b/color-module/Cargo.toml
index 5c79ae5..fabaa7d 100644
--- a/color-module/Cargo.toml
+++ b/color-module/Cargo.toml
@@ -9,6 +9,8 @@ crate-type = ["cdylib"]
 [dependencies]
 color-name = "1.1.0"
 enum-iterator = "2.1.0"
+linked-hash-map = { version = "0.5.6", features = ["serde", "serde_impl"] }
+linked_hash_set = { version = "0.1.5", features = ["serde"] }
 palette = { version = "0.7.6", features = ["serde"] }
 serde = { version = "1.0.216", features = ["derive"] }
 serde-wasm-bindgen = "0.6.5"