diff --git a/Cargo.lock b/Cargo.lock
index 969153813..f5bcb4eff 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1127,6 +1127,14 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "filter-parser"
+version = "0.29.3"
+dependencies = [
+ "nom",
+ "nom_locate",
+]
+
 [[package]]
 name = "filter-parser"
 version = "0.29.3"
@@ -1152,6 +1160,13 @@ dependencies = [
  "miniz_oxide",
 ]
 
+[[package]]
+name = "flatten-serde-json"
+version = "0.29.3"
+dependencies = [
+ "serde_json",
+]
+
 [[package]]
 name = "flatten-serde-json"
 version = "0.29.3"
@@ -1683,6 +1698,13 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "json-depth-checker"
+version = "0.29.3"
+dependencies = [
+ "serde_json",
+]
+
 [[package]]
 name = "json-depth-checker"
 version = "0.29.3"
@@ -2031,7 +2053,7 @@ dependencies = [
  "enum-iterator",
  "hmac",
  "meilisearch-types",
- "milli",
+ "milli 0.29.3 (git+https://github.com/meilisearch/milli.git?tag=v0.29.3)",
  "rand",
  "serde",
  "serde_json",
@@ -2140,11 +2162,12 @@ dependencies = [
  "http",
  "indexmap",
  "itertools",
+ "jayson",
  "lazy_static",
  "log",
  "meilisearch-auth",
  "meilisearch-types",
- "milli",
+ "milli 0.29.3",
  "mime",
  "mockall",
  "nelson",
@@ -2182,6 +2205,8 @@ name = "meilisearch-types"
 version = "0.28.0"
 dependencies = [
  "actix-web",
+ "jayson",
+ "milli 0.29.3",
  "proptest",
  "proptest-derive",
  "serde",
@@ -2212,6 +2237,51 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "milli"
+version = "0.29.3"
+dependencies = [
+ "bimap",
+ "bincode",
+ "bstr",
+ "byteorder",
+ "charabia",
+ "concat-arrays",
+ "crossbeam-channel",
+ "csv",
+ "either",
+ "filter-parser 0.29.3",
+ "flatten-serde-json 0.29.3",
+ "fst",
+ "fxhash",
+ "geoutils",
+ "grenad",
+ "heed",
+ "itertools",
+ "jayson",
+ "json-depth-checker 0.29.3",
+ "levenshtein_automata",
+ "log",
+ "logging_timer",
+ "memmap2",
+ "obkv",
+ "once_cell",
+ "ordered-float",
+ "rayon",
+ "roaring",
+ "rstar",
+ "serde",
+ "serde_json",
+ "slice-group-by",
+ "smallstr",
+ "smallvec",
+ "smartstring",
+ "tempfile",
+ "thiserror",
+ "time 0.3.9",
+ "uuid",
+]
+
 [[package]]
 name = "milli"
 version = "0.29.3"
@@ -2226,15 +2296,15 @@ dependencies = [
  "crossbeam-channel",
  "csv",
  "either",
- "filter-parser",
- "flatten-serde-json",
+ "filter-parser 0.29.3 (git+https://github.com/meilisearch/milli.git?tag=v0.29.3)",
+ "flatten-serde-json 0.29.3 (git+https://github.com/meilisearch/milli.git?tag=v0.29.3)",
  "fst",
  "fxhash",
  "geoutils",
  "grenad",
  "heed",
  "itertools",
- "json-depth-checker",
+ "json-depth-checker 0.29.3 (git+https://github.com/meilisearch/milli.git?tag=v0.29.3)",
  "levenshtein_automata",
  "log",
  "logging_timer",
diff --git a/meilisearch-http/src/extractors/jayson.rs b/meilisearch-http/src/extractors/jayson.rs
index 3af7e4876..4cfb45138 100644
--- a/meilisearch-http/src/extractors/jayson.rs
+++ b/meilisearch-http/src/extractors/jayson.rs
@@ -1,6 +1,7 @@
 use actix_web::{dev::Payload, web::Json, FromRequest, HttpRequest};
 use futures::ready;
-use jayson::{DeserializeError, DeserializeFromValue};
+use jayson::{DeserializeError, DeserializeFromValue, MergeWithError, ValuePointer};
+use meilisearch_lib::milli::AscDescError;
 use meilisearch_types::error::{Code, ErrorCode, ResponseError};
 use std::{
     fmt::Debug,
@@ -10,6 +11,66 @@ use std::{
     task::{Context, Poll},
 };
 
+// pub struct MeilisearchDeserializeError {
+//     pub Vec<(ValuePointer, Box<dyn Error>)>,
+// }
+// impl MergeWithError<AscDescError> for MeilisearchDeserializeError {
+//     fn merge(self_: Option<Self>, other: AscDescError, merge_location: jayson::ValuePointerRef) -> Result<Self, Self> {
+//         todo!()
+//     }
+// }
+// /*
+// {
+//     !
+//     x: {
+//         y: {
+//             z: {
+//                 a: 2
+//             }
+//         }
+//     }
+// }
+
+//  */
+//  impl MergeWithError<MeilisearchDeserializeError> for MeilisearchDeserializeError {
+
+//  }
+// impl DeserializeError for MeilisearchDeserializeError{
+//     fn location(&self) -> Option<jayson::ValuePointer> {
+//         todo!()
+//     }
+
+//     fn incorrect_value_kind(
+//         self_: Option<Self>,
+//         actual: jayson::ValueKind,
+//         accepted: &[jayson::ValueKind],
+//         location: jayson::ValuePointerRef,
+//     ) -> Result<Self, Self> {
+//         todo!()
+//     }
+
+//     fn missing_field(
+//         self_: Option<Self>,
+//         field: &str,
+//         location: jayson::ValuePointerRef,
+//     ) -> Result<Self, Self> {
+//         todo!()
+//     }
+
+//     fn unknown_key(
+//         self_: Option<Self>,
+//         key: &str,
+//         accepted: &[&str],
+//         location: jayson::ValuePointerRef,
+//     ) -> Result<Self, Self> {
+//         todo!()
+//     }
+
+//     fn unexpected(self_: Option<Self>, msg: &str, location: jayson::ValuePointerRef) -> Result<Self, Self> {
+//         todo!()
+//     }
+// }
+
 /// Extractor for typed data from Json request payloads
 /// deserialised by Jayson.
 ///
diff --git a/meilisearch-http/src/routes/indexes/settings.rs b/meilisearch-http/src/routes/indexes/settings.rs
index 962fe7d82..083a6bd01 100644
--- a/meilisearch-http/src/routes/indexes/settings.rs
+++ b/meilisearch-http/src/routes/indexes/settings.rs
@@ -4,11 +4,13 @@ use actix_web::{web, HttpRequest, HttpResponse};
 use meilisearch_lib::index::{Settings, Unchecked};
 use meilisearch_lib::index_controller::Update;
 use meilisearch_lib::MeiliSearch;
-use meilisearch_types::error::ResponseError;
+use meilisearch_types::error::{MeiliDeserError, ResponseError};
 use serde_json::json;
 
 use crate::analytics::Analytics;
+use crate::error::MeilisearchHttpError;
 use crate::extractors::authentication::{policies::*, GuardedData};
+use crate::extractors::jayson::ValidatedJson;
 use crate::task::SummarizedTaskView;
 
 #[macro_export]
@@ -260,27 +262,27 @@ make_setting_route!(
     "distinctAttribute"
 );
 
-make_setting_route!(
-    "/ranking-rules",
-    put,
-    Vec<String>,
-    ranking_rules,
-    "rankingRules",
-    analytics,
-    |setting: &Option<Vec<String>>, req: &HttpRequest| {
-        use serde_json::json;
+// make_setting_route!(
+//     "/ranking-rules",
+//     put,
+//     Vec<String>,
+//     ranking_rules,
+//     "rankingRules",
+//     analytics,
+//     |setting: &Option<Vec<milli::AscDesc>>, req: &HttpRequest| {
+//         use serde_json::json;
 
-        analytics.publish(
-            "RankingRules Updated".to_string(),
-            json!({
-                "ranking_rules": {
-                    "sort_position": setting.as_ref().map(|sort| sort.iter().position(|s| s == "sort")),
-                }
-            }),
-            Some(req),
-        );
-    }
-);
+//         analytics.publish(
+//             "RankingRules Updated".to_string(),
+//             json!({
+//                 "ranking_rules": {
+//                     "sort_position": setting.as_ref().map(|sort| sort.iter().position(|s| s == "sort")),
+//                 }
+//             }),
+//             Some(req),
+//         );
+//     }
+// );
 
 make_setting_route!(
     "/faceting",
@@ -348,14 +350,14 @@ generate_configure!(
     distinct_attribute,
     stop_words,
     synonyms,
-    ranking_rules,
+    // ranking_rules,
     typo_tolerance
 );
 
 pub async fn update_all(
     meilisearch: GuardedData<ActionPolicy<{ actions::SETTINGS_UPDATE }>, MeiliSearch>,
     index_uid: web::Path<String>,
-    body: web::Json<Settings<Unchecked>>,
+    body: ValidatedJson<Settings<Unchecked>, MeiliDeserError>,
     req: HttpRequest,
     analytics: web::Data<dyn Analytics>,
 ) -> Result<HttpResponse, ResponseError> {
@@ -365,7 +367,7 @@ pub async fn update_all(
         "Settings Updated".to_string(),
         json!({
            "ranking_rules": {
-                "sort_position": settings.ranking_rules.as_ref().set().map(|sort| sort.iter().position(|s| s == "sort")),
+                "sort_position": settings.ranking_rules.as_ref().set().map(|sort| sort.iter().position(|s| true /*TODO*/)),
             },
             "searchable_attributes": {
                 "total": settings.searchable_attributes.as_ref().set().map(|searchable| searchable.len()),
diff --git a/meilisearch-lib/Cargo.toml b/meilisearch-lib/Cargo.toml
index 094c79901..89952995a 100644
--- a/meilisearch-lib/Cargo.toml
+++ b/meilisearch-lib/Cargo.toml
@@ -30,7 +30,8 @@ lazy_static = "1.4.0"
 log = "0.4.14"
 meilisearch-auth = { path = "../meilisearch-auth" }
 meilisearch-types = { path = "../meilisearch-types" }
-milli = { git = "https://github.com/meilisearch/milli.git", tag = "v0.29.3" }
+milli = { path = "../../milli/milli"  }
+jayson = { path = "../../jayson" }
 mime = "0.3.16"
 num_cpus = "1.13.1"
 obkv = "0.2.0"
diff --git a/meilisearch-lib/src/index/index.rs b/meilisearch-lib/src/index/index.rs
index d4772b73b..6ceebe5e6 100644
--- a/meilisearch-lib/src/index/index.rs
+++ b/meilisearch-lib/src/index/index.rs
@@ -8,7 +8,7 @@ use std::sync::Arc;
 use fst::IntoStreamer;
 use milli::heed::{EnvOpenOptions, RoTxn};
 use milli::update::{IndexerConfig, Setting};
-use milli::{obkv_to_json, FieldDistribution, DEFAULT_VALUES_PER_FACET};
+use milli::{obkv_to_json, AscDesc, FieldDistribution, Member, DEFAULT_VALUES_PER_FACET};
 use serde::{Deserialize, Serialize};
 use serde_json::{Map, Value};
 use time::OffsetDateTime;
@@ -146,7 +146,7 @@ impl Index {
         let criteria = self
             .criteria(txn)?
             .into_iter()
-            .map(|c| c.to_string())
+            .map(|c| AscDesc::Asc(Member::Field("todo".to_string())))
             .collect();
 
         let stop_words = self
diff --git a/meilisearch-lib/src/index/updates.rs b/meilisearch-lib/src/index/updates.rs
index 95edbbf9d..2300f5c97 100644
--- a/meilisearch-lib/src/index/updates.rs
+++ b/meilisearch-lib/src/index/updates.rs
@@ -1,14 +1,16 @@
-use std::collections::{BTreeMap, BTreeSet};
-use std::marker::PhantomData;
-use std::num::NonZeroUsize;
-
+use jayson::DeserializeFromValue;
 use log::{debug, info, trace};
 use milli::documents::DocumentBatchReader;
 use milli::update::{
     DocumentAdditionResult, DocumentDeletionResult, IndexDocumentsConfig, IndexDocumentsMethod,
     Setting,
 };
+use milli::{AscDesc, Criterion};
+use rayon::vec;
 use serde::{Deserialize, Serialize, Serializer};
+use std::collections::{BTreeMap, BTreeSet};
+use std::marker::PhantomData;
+use std::num::NonZeroUsize;
 use uuid::Uuid;
 
 use super::error::Result;
@@ -36,9 +38,23 @@ pub struct Checked;
 
 #[derive(Clone, Default, Debug, Serialize, Deserialize, PartialEq)]
 pub struct Unchecked;
+impl<E> DeserializeFromValue<E> for Unchecked
+where
+    E: jayson::DeserializeError,
+{
+    fn deserialize_from_value<V>(
+        value: jayson::Value<V>,
+        location: jayson::ValuePointerRef,
+    ) -> std::result::Result<Self, E>
+    where
+        V: jayson::IntoValue,
+    {
+        Ok(Unchecked)
+    }
+}
 
 #[cfg_attr(test, derive(proptest_derive::Arbitrary))]
-#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq)]
+#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq, DeserializeFromValue)]
 #[serde(deny_unknown_fields)]
 #[serde(rename_all = "camelCase")]
 pub struct MinWordSizeTyposSetting {
@@ -51,7 +67,9 @@ pub struct MinWordSizeTyposSetting {
 }
 
 #[cfg_attr(test, derive(proptest_derive::Arbitrary))]
-#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq)]
+#[derive(
+    Debug, Clone, Default, Serialize, Deserialize, PartialEq, jayson::DeserializeFromValue,
+)]
 #[serde(deny_unknown_fields)]
 #[serde(rename_all = "camelCase")]
 pub struct TypoSettings {
@@ -70,7 +88,7 @@ pub struct TypoSettings {
 }
 
 #[cfg_attr(test, derive(proptest_derive::Arbitrary))]
-#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq)]
+#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq, DeserializeFromValue)]
 #[serde(deny_unknown_fields)]
 #[serde(rename_all = "camelCase")]
 pub struct FacetingSettings {
@@ -80,7 +98,9 @@ pub struct FacetingSettings {
 }
 
 #[cfg_attr(test, derive(proptest_derive::Arbitrary))]
-#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq)]
+#[derive(
+    Debug, Clone, Default, Serialize, Deserialize, PartialEq, jayson::DeserializeFromValue,
+)]
 #[serde(deny_unknown_fields)]
 #[serde(rename_all = "camelCase")]
 pub struct PaginationSettings {
@@ -92,11 +112,15 @@ pub struct PaginationSettings {
 /// Holds all the settings for an index. `T` can either be `Checked` if they represents settings
 /// whose validity is guaranteed, or `Unchecked` if they need to be validated. In the later case, a
 /// call to `check` will return a `Settings<Checked>` from a `Settings<Unchecked>`.
-#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq)]
+
+#[derive(
+    Debug, Clone, Default, Serialize, Deserialize, PartialEq, jayson::DeserializeFromValue,
+)]
 #[serde(deny_unknown_fields)]
 #[serde(rename_all = "camelCase")]
 #[serde(bound(serialize = "T: Serialize", deserialize = "T: Deserialize<'static>"))]
 #[cfg_attr(test, derive(proptest_derive::Arbitrary))]
+#[jayson(rename_all = camelCase, deny_unknown_fields)]
 pub struct Settings<T> {
     #[serde(
         default,
@@ -122,7 +146,8 @@ pub struct Settings<T> {
     pub sortable_attributes: Setting<BTreeSet<String>>,
     #[serde(default, skip_serializing_if = "Setting::is_not_set")]
     #[cfg_attr(test, proptest(strategy = "test::setting_strategy()"))]
-    pub ranking_rules: Setting<Vec<String>>,
+    #[jayson(needs_predicate)]
+    pub ranking_rules: Setting<Vec<AscDesc>>,
     #[serde(default, skip_serializing_if = "Setting::is_not_set")]
     #[cfg_attr(test, proptest(strategy = "test::setting_strategy()"))]
     pub stop_words: Setting<BTreeSet<String>>,
diff --git a/meilisearch-types/Cargo.toml b/meilisearch-types/Cargo.toml
index 6949722e7..2ee1e1ae3 100644
--- a/meilisearch-types/Cargo.toml
+++ b/meilisearch-types/Cargo.toml
@@ -10,6 +10,8 @@ proptest = { version = "1.0.0", optional = true }
 proptest-derive = { version = "0.3.0", optional = true }
 serde = { version = "1.0.136", features = ["derive"] }
 serde_json = "1.0.79"
+jayson = { path = "../../jayson" }
+milli = { path = "../../milli/milli" }
 
 [features]
 test-traits = ["proptest", "proptest-derive"]
diff --git a/meilisearch-types/src/error.rs b/meilisearch-types/src/error.rs
index 56ac65f9e..c1f37edba 100644
--- a/meilisearch-types/src/error.rs
+++ b/meilisearch-types/src/error.rs
@@ -1,6 +1,7 @@
 use std::fmt;
 
 use actix_web::{self as aweb, http::StatusCode, HttpResponseBuilder};
+use jayson::{ValueKind, ValuePointerRef};
 use serde::{Deserialize, Serialize};
 
 #[derive(Debug, Serialize, Deserialize, Clone, PartialEq, Eq)]
@@ -22,6 +23,84 @@ pub struct ResponseError {
     error_link: String,
 }
 
+#[derive(Debug)]
+pub struct MeiliDeserError(String);
+impl std::fmt::Display for MeiliDeserError {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", self.0)
+    }
+}
+impl std::error::Error for MeiliDeserError {}
+impl ErrorCode for MeiliDeserError {
+    fn error_code(&self) -> Code {
+        Code::MalformedPayload
+    }
+}
+impl jayson::MergeWithError<milli::AscDescError> for MeiliDeserError {
+    fn merge(
+        self_: Option<Self>,
+        other: milli::AscDescError,
+        merge_location: jayson::ValuePointerRef,
+    ) -> Result<Self, Self> {
+        let pointer = merge_location.to_owned();
+        Err(MeiliDeserError(format!("{pointer:?} -> {other} ")))
+    }
+}
+
+impl jayson::MergeWithError<MeiliDeserError> for MeiliDeserError {
+    fn merge(
+        self_: Option<Self>,
+        other: MeiliDeserError,
+        merge_location: ValuePointerRef,
+    ) -> Result<Self, Self> {
+        Err(other)
+    }
+}
+impl jayson::DeserializeError for MeiliDeserError {
+    /// Return the origin of the error, if it can be found
+    fn location(&self) -> Option<jayson::ValuePointer> {
+        None
+    }
+    /// Create a new error due to an unexpected value kind.
+    ///
+    /// Return `Ok` to continue deserializing or `Err` to fail early.
+    fn incorrect_value_kind(
+        self_: Option<Self>,
+        actual: ValueKind,
+        accepted: &[ValueKind],
+        location: ValuePointerRef,
+    ) -> Result<Self, Self> {
+        Err(MeiliDeserError(format!("incorrect value kind {actual}")))
+    }
+    /// Create a new error due to a missing key.
+    ///
+    /// Return `Ok` to continue deserializing or `Err` to fail early.
+    fn missing_field(
+        self_: Option<Self>,
+        field: &str,
+        location: ValuePointerRef,
+    ) -> Result<Self, Self> {
+        Err(MeiliDeserError(format!("missing field {field}")))
+    }
+    /// Create a new error due to finding an unknown key.
+    ///
+    /// Return `Ok` to continue deserializing or `Err` to fail early.
+    fn unknown_key(
+        self_: Option<Self>,
+        key: &str,
+        accepted: &[&str],
+        location: ValuePointerRef,
+    ) -> Result<Self, Self> {
+        Err(MeiliDeserError(format!("unknown key {key}")))
+    }
+    /// Create a new error with the custom message.
+    ///
+    /// Return `Ok` to continue deserializing or `Err` to fail early.
+    fn unexpected(self_: Option<Self>, msg: &str, location: ValuePointerRef) -> Result<Self, Self> {
+        Err(MeiliDeserError(format!("unexpected {msg}")))
+    }
+}
+
 impl ResponseError {
     pub fn from_msg(message: String, code: Code) -> Self {
         Self {