diff --git a/Cargo.toml b/Cargo.toml
index 237c2b9..b2d56c2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -102,6 +102,11 @@ libc      = "0.2"
 bitflags  = "1.0"
 thiserror = "1"
 
+[dependencies.serde]
+version = "1.0.0"
+optional = true
+features = ["derive"]
+
 [dependencies.image]
 version  = "0.23"
 optional = true