diff --git a/crates/s3-client/src/api_put_object.rs b/crates/s3-client/src/api_put_object.rs
index 82797a22f..158523946 100644
--- a/crates/s3-client/src/api_put_object.rs
+++ b/crates/s3-client/src/api_put_object.rs
@@ -24,6 +24,7 @@ use std::{collections::HashMap, sync::Arc};
 use time::{Duration, OffsetDateTime, macros::format_description};
 use tracing::{error, info, warn};
 
+use rustfs_utils::http::{is_amz_header, is_minio_header, is_rustfs_header, is_standard_header, is_storageclass_header};
 use s3s::dto::{ObjectLockLegalHoldStatus, ObjectLockRetentionMode, ReplicationStatus};
 use s3s::header::{
     X_AMZ_OBJECT_LOCK_LEGAL_HOLD, X_AMZ_OBJECT_LOCK_MODE, X_AMZ_OBJECT_LOCK_RETAIN_UNTIL_DATE, X_AMZ_REPLICATION_STATUS,
@@ -40,7 +41,6 @@ use crate::{
     constants::{ISO8601_DATEFORMAT, MAX_MULTIPART_PUT_OBJECT_SIZE, MIN_PART_SIZE},
     credentials::SignatureType,
     transition_api::{ReaderImpl, TransitionClient, UploadInfo},
-    utils::{is_amz_header, is_minio_header, is_rustfs_header, is_standard_header, is_storageclass_header},
 };
 
 #[derive(Debug, Clone)]
diff --git a/crates/s3-client/src/utils.rs b/crates/s3-client/src/utils.rs
index 3a03449fb..bc3645346 100644
--- a/crates/s3-client/src/utils.rs
+++ b/crates/s3-client/src/utils.rs
@@ -12,67 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use lazy_static::lazy_static;
-use std::collections::HashMap;
-
-use s3s::header::X_AMZ_STORAGE_CLASS;
-
-lazy_static! {
-    static ref SUPPORTED_QUERY_VALUES: HashMap<String, bool> = {
-        let mut m = HashMap::new();
-        m.insert("attributes".to_string(), true);
-        m.insert("partNumber".to_string(), true);
-        m.insert("versionId".to_string(), true);
-        m.insert("response-cache-control".to_string(), true);
-        m.insert("response-content-disposition".to_string(), true);
-        m.insert("response-content-encoding".to_string(), true);
-        m.insert("response-content-language".to_string(), true);
-        m.insert("response-content-type".to_string(), true);
-        m.insert("response-expires".to_string(), true);
-        m
-    };
-    static ref SUPPORTED_HEADERS: HashMap<String, bool> = {
-        let mut m = HashMap::new();
-        m.insert("content-type".to_string(), true);
-        m.insert("cache-control".to_string(), true);
-        m.insert("content-encoding".to_string(), true);
-        m.insert("content-disposition".to_string(), true);
-        m.insert("content-language".to_string(), true);
-        m.insert("x-amz-website-redirect-location".to_string(), true);
-        m.insert("x-amz-object-lock-mode".to_string(), true);
-        m.insert("x-amz-metadata-directive".to_string(), true);
-        m.insert("x-amz-object-lock-retain-until-date".to_string(), true);
-        m.insert("expires".to_string(), true);
-        m.insert("x-amz-replication-status".to_string(), true);
-        m
-    };
-}
-
-pub fn is_storageclass_header(header_key: &str) -> bool {
-    header_key.to_lowercase() == X_AMZ_STORAGE_CLASS.as_str().to_lowercase()
-}
-
-pub fn is_standard_header(header_key: &str) -> bool {
-    *SUPPORTED_HEADERS.get(&header_key.to_lowercase()).unwrap_or(&false)
-}
-
-pub fn is_amz_header(header_key: &str) -> bool {
-    let key = header_key.to_lowercase();
-    key.starts_with("x-amz-meta-")
-        || key.starts_with("x-amz-grant-")
-        || key == "x-amz-acl"
-        || rustfs_utils::http::is_sse_header(header_key)
-        || key.starts_with("x-amz-checksum-")
-}
-
-pub fn is_rustfs_header(header_key: &str) -> bool {
-    header_key.to_lowercase().starts_with("x-rustfs-")
-}
-
-pub fn is_minio_header(header_key: &str) -> bool {
-    header_key.to_lowercase().starts_with("x-minio-")
-}
-
 /// Standard base64 (with `+`/`/` and `=` padding). Every base64 value this
 /// transition client emits or parses — `Content-MD5`, `x-amz-checksum-*`, and
 /// checksum digests in request/response bodies — is S3 wire format, which is