diff --git a/Cargo.lock b/Cargo.lock
index f5bcb4eff..e922d5e6d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2099,6 +2099,7 @@ dependencies = [
  "meilisearch-auth",
  "meilisearch-lib",
  "meilisearch-types",
+ "milli 0.29.3",
  "mime",
  "num_cpus",
  "obkv",
diff --git a/meilisearch-http/Cargo.toml b/meilisearch-http/Cargo.toml
index 7f8b9931f..4ed999118 100644
--- a/meilisearch-http/Cargo.toml
+++ b/meilisearch-http/Cargo.toml
@@ -48,6 +48,7 @@ log = "0.4.14"
 meilisearch-auth = { path = "../meilisearch-auth" }
 meilisearch-types = { path = "../meilisearch-types" }
 meilisearch-lib = { path = "../meilisearch-lib" }
+milli = { path = "../../milli/milli" }
 mime = "0.3.16"
 num_cpus = "1.13.1"
 obkv = "0.2.0"
diff --git a/meilisearch-http/src/extractors/jayson.rs b/meilisearch-http/src/extractors/jayson.rs
index 4cfb45138..3af7e4876 100644
--- a/meilisearch-http/src/extractors/jayson.rs
+++ b/meilisearch-http/src/extractors/jayson.rs
@@ -1,7 +1,6 @@
 use actix_web::{dev::Payload, web::Json, FromRequest, HttpRequest};
 use futures::ready;
-use jayson::{DeserializeError, DeserializeFromValue, MergeWithError, ValuePointer};
-use meilisearch_lib::milli::AscDescError;
+use jayson::{DeserializeError, DeserializeFromValue};
 use meilisearch_types::error::{Code, ErrorCode, ResponseError};
 use std::{
     fmt::Debug,
@@ -11,66 +10,6 @@ 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 083a6bd01..5b7e9d609 100644
--- a/meilisearch-http/src/routes/indexes/settings.rs
+++ b/meilisearch-http/src/routes/indexes/settings.rs
@@ -8,7 +8,6 @@ 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;
@@ -262,27 +261,27 @@ make_setting_route!(
     "distinctAttribute"
 );
 
-// make_setting_route!(
-//     "/ranking-rules",
-//     put,
-//     Vec<String>,
-//     ranking_rules,
-//     "rankingRules",
-//     analytics,
-//     |setting: &Option<Vec<milli::AscDesc>>, req: &HttpRequest| {
-//         use serde_json::json;
+make_setting_route!(
+    "/ranking-rules",
+    put,
+    Vec<milli::Criterion>,
+    ranking_rules,
+    "rankingRules",
+    analytics,
+    |setting: &Option<Vec<milli::Criterion>>, 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| matches!(s, milli::Criterion::Sort))),
+                }
+            }),
+            Some(req),
+        );
+    }
+);
 
 make_setting_route!(
     "/faceting",
@@ -350,7 +349,7 @@ generate_configure!(
     distinct_attribute,
     stop_words,
     synonyms,
-    // ranking_rules,
+    ranking_rules,
     typo_tolerance
 );
 
@@ -367,7 +366,7 @@ 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| true /*TODO*/)),
+                "sort_position": settings.ranking_rules.as_ref().set().map(|sort| sort.iter().position(|s| matches!(s, milli::Criterion::Sort))),
             },
             "searchable_attributes": {
                 "total": settings.searchable_attributes.as_ref().set().map(|searchable| searchable.len()),
diff --git a/meilisearch-lib/src/index/index.rs b/meilisearch-lib/src/index/index.rs
index 6ceebe5e6..c79c7e8f1 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, AscDesc, FieldDistribution, Member, DEFAULT_VALUES_PER_FACET};
+use milli::{obkv_to_json, FieldDistribution, DEFAULT_VALUES_PER_FACET};
 use serde::{Deserialize, Serialize};
 use serde_json::{Map, Value};
 use time::OffsetDateTime;
@@ -143,11 +143,7 @@ impl Index {
 
         let sortable_attributes = self.sortable_fields(txn)?.into_iter().collect();
 
-        let criteria = self
-            .criteria(txn)?
-            .into_iter()
-            .map(|c| AscDesc::Asc(Member::Field("todo".to_string())))
-            .collect();
+        let criteria = self.criteria(txn)?;
 
         let stop_words = self
             .stop_words(txn)?
diff --git a/meilisearch-lib/src/index/updates.rs b/meilisearch-lib/src/index/updates.rs
index 2300f5c97..011e59e11 100644
--- a/meilisearch-lib/src/index/updates.rs
+++ b/meilisearch-lib/src/index/updates.rs
@@ -5,8 +5,7 @@ use milli::update::{
     DocumentAdditionResult, DocumentDeletionResult, IndexDocumentsConfig, IndexDocumentsMethod,
     Setting,
 };
-use milli::{AscDesc, Criterion};
-use rayon::vec;
+use milli::Criterion;
 use serde::{Deserialize, Serialize, Serializer};
 use std::collections::{BTreeMap, BTreeSet};
 use std::marker::PhantomData;
@@ -43,8 +42,8 @@ where
     E: jayson::DeserializeError,
 {
     fn deserialize_from_value<V>(
-        value: jayson::Value<V>,
-        location: jayson::ValuePointerRef,
+        _value: jayson::Value<V>,
+        _location: jayson::ValuePointerRef,
     ) -> std::result::Result<Self, E>
     where
         V: jayson::IntoValue,
@@ -147,7 +146,7 @@ pub struct Settings<T> {
     #[serde(default, skip_serializing_if = "Setting::is_not_set")]
     #[cfg_attr(test, proptest(strategy = "test::setting_strategy()"))]
     #[jayson(needs_predicate)]
-    pub ranking_rules: Setting<Vec<AscDesc>>,
+    pub ranking_rules: Setting<Vec<Criterion>>,
     #[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/src/error.rs b/meilisearch-types/src/error.rs
index c1f37edba..17c23b889 100644
--- a/meilisearch-types/src/error.rs
+++ b/meilisearch-types/src/error.rs
@@ -36,10 +36,10 @@ impl ErrorCode for MeiliDeserError {
         Code::MalformedPayload
     }
 }
-impl jayson::MergeWithError<milli::AscDescError> for MeiliDeserError {
+impl jayson::MergeWithError<milli::CriterionError> for MeiliDeserError {
     fn merge(
-        self_: Option<Self>,
-        other: milli::AscDescError,
+        _self_: Option<Self>,
+        other: milli::CriterionError,
         merge_location: jayson::ValuePointerRef,
     ) -> Result<Self, Self> {
         let pointer = merge_location.to_owned();
@@ -49,9 +49,9 @@ impl jayson::MergeWithError<milli::AscDescError> for MeiliDeserError {
 
 impl jayson::MergeWithError<MeiliDeserError> for MeiliDeserError {
     fn merge(
-        self_: Option<Self>,
+        _self_: Option<Self>,
         other: MeiliDeserError,
-        merge_location: ValuePointerRef,
+        _merge_location: ValuePointerRef,
     ) -> Result<Self, Self> {
         Err(other)
     }
@@ -65,10 +65,10 @@ impl jayson::DeserializeError for MeiliDeserError {
     ///
     /// Return `Ok` to continue deserializing or `Err` to fail early.
     fn incorrect_value_kind(
-        self_: Option<Self>,
+        _self_: Option<Self>,
         actual: ValueKind,
-        accepted: &[ValueKind],
-        location: ValuePointerRef,
+        _accepted: &[ValueKind],
+        _location: ValuePointerRef,
     ) -> Result<Self, Self> {
         Err(MeiliDeserError(format!("incorrect value kind {actual}")))
     }
@@ -76,9 +76,9 @@ impl jayson::DeserializeError for MeiliDeserError {
     ///
     /// Return `Ok` to continue deserializing or `Err` to fail early.
     fn missing_field(
-        self_: Option<Self>,
+        _self_: Option<Self>,
         field: &str,
-        location: ValuePointerRef,
+        _location: ValuePointerRef,
     ) -> Result<Self, Self> {
         Err(MeiliDeserError(format!("missing field {field}")))
     }
@@ -86,17 +86,21 @@ impl jayson::DeserializeError for MeiliDeserError {
     ///
     /// Return `Ok` to continue deserializing or `Err` to fail early.
     fn unknown_key(
-        self_: Option<Self>,
+        _self_: Option<Self>,
         key: &str,
-        accepted: &[&str],
-        location: ValuePointerRef,
+        _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> {
+    fn unexpected(
+        _self_: Option<Self>,
+        msg: &str,
+        _location: ValuePointerRef,
+    ) -> Result<Self, Self> {
         Err(MeiliDeserError(format!("unexpected {msg}")))
     }
 }