diff --git a/Cargo.toml b/Cargo.toml
index 7f1da5ee..39649586 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -38,7 +38,7 @@ regex = "1.9"
 serde_json = "1.0"
 serde-jsonlines = "0.4"
 serde = { version = "1.0", features = ["serde_derive"] }
-serde_with = "3.3"
+serde_with = { version = "3.3", features = ["indexmap_2"] }
 shellexpand = "3.0"
 strum_macros = "0.25"
 strum = { version = "0.25", features = ["derive"] }