diff --git a/Cargo.lock b/Cargo.lock
index ee10bd6f..238c0d10 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2588,6 +2588,7 @@ version = "1.0.149"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "83fc039473c5595ace860d8c4fafa220ff474b3fc6bfdb4293327f1a37e94d86"
 dependencies = [
+ "indexmap",
  "itoa",
  "memchr",
  "serde",
diff --git a/Cargo.toml b/Cargo.toml
index fb59981d..6b0ffc5f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,7 +50,7 @@ wasmtime-wasi = "=39.0.1"
 deterministic-wasi-ctx = "=3.0.4"
 anyhow = "1.0"
 clap = { version = "4.5", features = ["derive"] }
-serde_json = "1.0"
+serde_json = { version = "1.0", features = ["preserve_order"] }
 colored = "3.1"
 serde = "1.0"
 rust-embed = "8.11.0"
diff --git a/src/container.rs b/src/container.rs
index c3c1fd1b..435bf729 100644
--- a/src/container.rs
+++ b/src/container.rs
@@ -136,3 +136,18 @@ impl BytesContainer {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn json_input_preserves_object_key_order_in_raw_bytes() {
+        let raw = br#"{"msg":{"sq-XK":"5.00 EUR Zbritje","en":"5.00 EUR Discount"}}"#.to_vec();
+
+        let input = BytesContainer::new(BytesContainerType::Input, Codec::Json, raw.clone())
+            .expect("valid JSON input");
+
+        assert_eq!(String::from_utf8(input.raw).unwrap(), String::from_utf8(raw).unwrap());
+    }
+}