diff --git a/core/Cargo.toml b/core/Cargo.toml
index 06d0c8d..dda020f 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "hyperparameter"
-version = "0.5.10"
+version = "0.5.11"
 license = "Apache-2.0"
 description = "A high performance configuration system for Rust."
 homepage = "https://reiase.github.io/hyperparameter/"
diff --git a/core/src/api.rs b/core/src/api.rs
index c8b1553..09862b8 100644
--- a/core/src/api.rs
+++ b/core/src/api.rs
@@ -1,6 +1,9 @@
 use std::collections::HashSet;
 use std::fmt::Debug;
 
+use const_str;
+use xxhash_rust;
+
 use crate::storage::{
     frozen_global_storage, Entry, GetOrElse, MultipleVersion, Params, THREAD_STORAGE,
 };
@@ -184,15 +187,15 @@ pub fn frozen() {
 #[macro_export]
 macro_rules! get_param {
     ($name:expr, $default:expr) => {{
-        const CONST_KEY: &str = ::const_str::replace!(stringify!($name), ";", "");
-        const CONST_HASH: u64 = ::xxhash_rust::const_xxh64::xxh64(CONST_KEY.as_bytes(), 42);
+        const CONST_KEY: &str = const_str::replace!(stringify!($name), ";", "");
+        const CONST_HASH: u64 = xxhash_rust::const_xxh64::xxh64(CONST_KEY.as_bytes(), 42);
         THREAD_STORAGE.with(|ts| ts.borrow_mut().get_or_else(CONST_HASH, $default))
         // ParamScope::default().get_or_else(CONST_HASH, $default)
     }};
 
     ($name:expr, $default:expr, $help: expr) => {{
-        const CONST_KEY: &str = ::const_str::replace!(stringify!($name), ";", "");
-        const CONST_HASH: u64 = ::xxhash_rust::const_xxh64::xxh64(CONST_KEY.as_bytes(), 42);
+        const CONST_KEY: &str = const_str::replace!(stringify!($name), ";", "");
+        const CONST_HASH: u64 = xxhash_rust::const_xxh64::xxh64(CONST_KEY.as_bytes(), 42);
         // ParamScope::default().get_or_else(CONST_HASH, $default)
         {
             const CONST_HELP: &str = $help;
@@ -238,7 +241,7 @@ macro_rules! with_params {
     ) =>{
         let mut ps = ParamScope::default();
         {
-            const CONST_KEY: &str = ::const_str::replace!(stringify!($($key).+), ";", "");
+            const CONST_KEY: &str = const_str::replace!(stringify!($($key).+), ";", "");
             ps.put(CONST_KEY, $val);
         }
         with_params!(params ps; $($body)*)
@@ -251,7 +254,7 @@ macro_rules! with_params {
         $($body:tt)*
     ) => {
         {
-            const CONST_KEY: &str = ::const_str::replace!(stringify!($($key).+), ";", "");
+            const CONST_KEY: &str = const_str::replace!(stringify!($($key).+), ";", "");
             $ps.put(CONST_KEY, $val);
         }
         with_params!(params $ps; $($body)*)
@@ -339,7 +342,7 @@ macro_rules! with_params_readonly {
     ) =>{
         let mut ps = ParamScope::default();
         {
-            const CONST_KEY: &str = ::const_str::replace!(stringify!($($key).+), ";", "");
+            const CONST_KEY: &str = const_str::replace!(stringify!($($key).+), ";", "");
             ps.put(CONST_KEY, $val);
         }
         with_params!(params ps; $($body)*)
diff --git a/core/src/lib.rs b/core/src/lib.rs
index 4f125bb..1e834c0 100644
--- a/core/src/lib.rs
+++ b/core/src/lib.rs
@@ -19,6 +19,8 @@ pub use crate::storage::THREAD_STORAGE;
 pub use crate::value::Value;
 pub use crate::xxh::xxhash;
 pub use crate::xxh::XXHashable;
+pub use const_str;
+pub use xxhash_rust;
 
 #[cfg(feature = "clap")]
 mod cli;