diff --git a/Cargo.lock b/Cargo.lock
index db9b19775..0c17d18df 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -83,12 +83,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "equivalent"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
-
 [[package]]
 name = "form_urlencoded"
 version = "1.2.1"
@@ -115,12 +109,6 @@ dependencies = [
  "wasi",
 ]
 
-[[package]]
-name = "hashbrown"
-version = "0.14.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
-
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -272,16 +260,6 @@ dependencies = [
  "icu_properties",
 ]
 
-[[package]]
-name = "indexmap"
-version = "2.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "168fb715dda47215e360912c096649d23d58bf392ac62f73919e831745e40f26"
-dependencies = [
- "equivalent",
- "hashbrown",
-]
-
 [[package]]
 name = "indoc"
 version = "2.0.5"
@@ -604,7 +582,6 @@ version = "1.0.140"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
 dependencies = [
- "indexmap",
  "itoa",
  "memchr",
  "ryu",
diff --git a/Cargo.toml b/Cargo.toml
index 57cc42d6b..c8bc0cce6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,7 +33,7 @@ pyo3 = { version = "0.24", features = ["generate-import-lib", "num-bigint", "py-
 regex = "1.11.1"
 strum = { version = "0.26.3", features = ["derive"] }
 strum_macros = "0.26.4"
-serde_json = {version = "1.0.140", features = ["arbitrary_precision", "preserve_order"]}
+serde_json = { version = "1.0.140", features = ["arbitrary_precision"] }
 enum_dispatch = "0.3.13"
 serde = { version = "1.0.219", features = ["derive"] }
 speedate = "0.15.0"