diff --git a/api_generator/src/api_generator/code_gen/mod.rs b/api_generator/src/api_generator/code_gen/mod.rs
index 1d064fe9..6b7cff4d 100644
--- a/api_generator/src/api_generator/code_gen/mod.rs
+++ b/api_generator/src/api_generator/code_gen/mod.rs
@@ -26,7 +26,6 @@ pub fn use_declarations() -> Tokens {
         };
         use std::borrow::Cow;
         use serde::Serialize;
-        use serde_with;
     )
 }
 
diff --git a/api_generator/src/api_generator/code_gen/url/enum_builder.rs b/api_generator/src/api_generator/code_gen/url/enum_builder.rs
index 2d151906..17217edd 100644
--- a/api_generator/src/api_generator/code_gen/url/enum_builder.rs
+++ b/api_generator/src/api_generator/code_gen/url/enum_builder.rs
@@ -18,7 +18,6 @@
 use crate::api_generator::code_gen::url::url_builder::{IntoExpr, UrlBuilder};
 use crate::api_generator::{code_gen::*, ApiEndpoint, Path};
 use inflector::Inflector;
-use syn;
 
 /// Builder for request url parts enum
 ///
diff --git a/api_generator/src/api_generator/code_gen/url/url_builder.rs b/api_generator/src/api_generator/code_gen/url/url_builder.rs
index 970f4317..84654ea3 100644
--- a/api_generator/src/api_generator/code_gen/url/url_builder.rs
+++ b/api_generator/src/api_generator/code_gen/url/url_builder.rs
@@ -20,7 +20,6 @@ use crate::api_generator::{Path, Type, TypeKind};
 use quote::ToTokens;
 use serde::{Deserialize, Deserializer};
 use std::{collections::BTreeMap, fmt, iter::Iterator, str};
-use syn;
 
 /// A URL path
 #[derive(Debug, Deserialize, PartialEq, Clone)]
diff --git a/api_generator/src/api_generator/mod.rs b/api_generator/src/api_generator/mod.rs
index 23631a7a..edd94051 100644
--- a/api_generator/src/api_generator/mod.rs
+++ b/api_generator/src/api_generator/mod.rs
@@ -17,7 +17,6 @@ use semver::Version;
 use serde::de::{MapAccess, Visitor};
 use std::marker::PhantomData;
 use std::str::FromStr;
-use url;
 use void::Void;
 
 mod code_gen;
diff --git a/api_generator/src/error.rs b/api_generator/src/error.rs
index e2f07ae0..4808df9e 100644
--- a/api_generator/src/error.rs
+++ b/api_generator/src/error.rs
@@ -1,4 +1,3 @@
-use std;
 use std::fmt;
 
 #[derive(Debug, Clone)]
diff --git a/elasticsearch/src/error.rs b/elasticsearch/src/error.rs
index 2b785140..55874089 100644
--- a/elasticsearch/src/error.rs
+++ b/elasticsearch/src/error.rs
@@ -15,7 +15,6 @@
  * limitations under the License.
  */
 use crate::http::transport::BuildError;
-use serde_json;
 use std::error;
 use std::fmt;
 use std::io;
diff --git a/elasticsearch/src/generated/namespace_clients/cat.rs b/elasticsearch/src/generated/namespace_clients/cat.rs
index 72aafa79..77d0b72d 100644
--- a/elasticsearch/src/generated/namespace_clients/cat.rs
+++ b/elasticsearch/src/generated/namespace_clients/cat.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Cat Aliases API"]
diff --git a/elasticsearch/src/generated/namespace_clients/ccr.rs b/elasticsearch/src/generated/namespace_clients/ccr.rs
index cbb57a00..4044b081 100644
--- a/elasticsearch/src/generated/namespace_clients/ccr.rs
+++ b/elasticsearch/src/generated/namespace_clients/ccr.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Ccr Delete Auto Follow Pattern API"]
diff --git a/elasticsearch/src/generated/namespace_clients/cluster.rs b/elasticsearch/src/generated/namespace_clients/cluster.rs
index 6a4fca48..1a996860 100644
--- a/elasticsearch/src/generated/namespace_clients/cluster.rs
+++ b/elasticsearch/src/generated/namespace_clients/cluster.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Cluster Allocation Explain API"]
diff --git a/elasticsearch/src/generated/namespace_clients/enrich.rs b/elasticsearch/src/generated/namespace_clients/enrich.rs
index 0a26752a..7d4754f0 100644
--- a/elasticsearch/src/generated/namespace_clients/enrich.rs
+++ b/elasticsearch/src/generated/namespace_clients/enrich.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Enrich Delete Policy API"]
diff --git a/elasticsearch/src/generated/namespace_clients/graph.rs b/elasticsearch/src/generated/namespace_clients/graph.rs
index 13ed0008..a601c2b8 100644
--- a/elasticsearch/src/generated/namespace_clients/graph.rs
+++ b/elasticsearch/src/generated/namespace_clients/graph.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Graph Explore API"]
diff --git a/elasticsearch/src/generated/namespace_clients/ilm.rs b/elasticsearch/src/generated/namespace_clients/ilm.rs
index b0482228..eb203be7 100644
--- a/elasticsearch/src/generated/namespace_clients/ilm.rs
+++ b/elasticsearch/src/generated/namespace_clients/ilm.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Ilm Delete Lifecycle API"]
diff --git a/elasticsearch/src/generated/namespace_clients/indices.rs b/elasticsearch/src/generated/namespace_clients/indices.rs
index 68f21452..4ebd3d77 100644
--- a/elasticsearch/src/generated/namespace_clients/indices.rs
+++ b/elasticsearch/src/generated/namespace_clients/indices.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Indices Analyze API"]
diff --git a/elasticsearch/src/generated/namespace_clients/ingest.rs b/elasticsearch/src/generated/namespace_clients/ingest.rs
index 2254aa81..9a2d374c 100644
--- a/elasticsearch/src/generated/namespace_clients/ingest.rs
+++ b/elasticsearch/src/generated/namespace_clients/ingest.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Ingest Delete Pipeline API"]
diff --git a/elasticsearch/src/generated/namespace_clients/license.rs b/elasticsearch/src/generated/namespace_clients/license.rs
index ab282bac..f0b26af9 100644
--- a/elasticsearch/src/generated/namespace_clients/license.rs
+++ b/elasticsearch/src/generated/namespace_clients/license.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the License Delete API"]
diff --git a/elasticsearch/src/generated/namespace_clients/migration.rs b/elasticsearch/src/generated/namespace_clients/migration.rs
index 6d137812..bc026058 100644
--- a/elasticsearch/src/generated/namespace_clients/migration.rs
+++ b/elasticsearch/src/generated/namespace_clients/migration.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Migration Deprecations API"]
diff --git a/elasticsearch/src/generated/namespace_clients/ml.rs b/elasticsearch/src/generated/namespace_clients/ml.rs
index 98b913fc..7b26f846 100644
--- a/elasticsearch/src/generated/namespace_clients/ml.rs
+++ b/elasticsearch/src/generated/namespace_clients/ml.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Ml Close Job API"]
diff --git a/elasticsearch/src/generated/namespace_clients/nodes.rs b/elasticsearch/src/generated/namespace_clients/nodes.rs
index 5cfa2a29..650adadb 100644
--- a/elasticsearch/src/generated/namespace_clients/nodes.rs
+++ b/elasticsearch/src/generated/namespace_clients/nodes.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Nodes Hot Threads API"]
diff --git a/elasticsearch/src/generated/namespace_clients/security.rs b/elasticsearch/src/generated/namespace_clients/security.rs
index a5a86c71..cf0b47b6 100644
--- a/elasticsearch/src/generated/namespace_clients/security.rs
+++ b/elasticsearch/src/generated/namespace_clients/security.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Security Authenticate API"]
diff --git a/elasticsearch/src/generated/namespace_clients/slm.rs b/elasticsearch/src/generated/namespace_clients/slm.rs
index 82401de7..d21e10e7 100644
--- a/elasticsearch/src/generated/namespace_clients/slm.rs
+++ b/elasticsearch/src/generated/namespace_clients/slm.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Slm Delete Lifecycle API"]
diff --git a/elasticsearch/src/generated/namespace_clients/snapshot.rs b/elasticsearch/src/generated/namespace_clients/snapshot.rs
index 8f590221..a85fec9d 100644
--- a/elasticsearch/src/generated/namespace_clients/snapshot.rs
+++ b/elasticsearch/src/generated/namespace_clients/snapshot.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Snapshot Cleanup Repository API"]
diff --git a/elasticsearch/src/generated/namespace_clients/sql.rs b/elasticsearch/src/generated/namespace_clients/sql.rs
index 485ae5e3..8b792906 100644
--- a/elasticsearch/src/generated/namespace_clients/sql.rs
+++ b/elasticsearch/src/generated/namespace_clients/sql.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Sql Clear Cursor API"]
diff --git a/elasticsearch/src/generated/namespace_clients/ssl.rs b/elasticsearch/src/generated/namespace_clients/ssl.rs
index acfdf640..f2577f45 100644
--- a/elasticsearch/src/generated/namespace_clients/ssl.rs
+++ b/elasticsearch/src/generated/namespace_clients/ssl.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Ssl Certificates API"]
diff --git a/elasticsearch/src/generated/namespace_clients/tasks.rs b/elasticsearch/src/generated/namespace_clients/tasks.rs
index 51de832f..e5092298 100644
--- a/elasticsearch/src/generated/namespace_clients/tasks.rs
+++ b/elasticsearch/src/generated/namespace_clients/tasks.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Tasks Cancel API"]
diff --git a/elasticsearch/src/generated/namespace_clients/watcher.rs b/elasticsearch/src/generated/namespace_clients/watcher.rs
index 50f6275b..3cba1806 100644
--- a/elasticsearch/src/generated/namespace_clients/watcher.rs
+++ b/elasticsearch/src/generated/namespace_clients/watcher.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Watcher Ack Watch API"]
diff --git a/elasticsearch/src/generated/namespace_clients/xpack.rs b/elasticsearch/src/generated/namespace_clients/xpack.rs
index ac87d057..c3fd7d1d 100644
--- a/elasticsearch/src/generated/namespace_clients/xpack.rs
+++ b/elasticsearch/src/generated/namespace_clients/xpack.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Xpack Info API"]
diff --git a/elasticsearch/src/generated/root.rs b/elasticsearch/src/generated/root.rs
index 8f90555f..0b93b35e 100644
--- a/elasticsearch/src/generated/root.rs
+++ b/elasticsearch/src/generated/root.rs
@@ -27,7 +27,6 @@ use crate::{
     params::*,
 };
 use serde::Serialize;
-use serde_with;
 use std::borrow::Cow;
 #[derive(Debug, Clone, PartialEq)]
 #[doc = "API parts for the Bulk API"]
diff --git a/elasticsearch/src/http/transport.rs b/elasticsearch/src/http/transport.rs
index f6f6a926..051fd911 100644
--- a/elasticsearch/src/http/transport.rs
+++ b/elasticsearch/src/http/transport.rs
@@ -14,7 +14,6 @@ use crate::{
     },
 };
 
-use base64;
 use base64::write::EncoderWriter as Base64Encoder;
 use bytes::BytesMut;
 use serde::Serialize;