diff --git a/cereja/__init__.py b/cereja/__init__.py
index 8de18ad..65b6eee 100644
--- a/cereja/__init__.py
+++ b/cereja/__init__.py
@@ -48,7 +48,7 @@
 from ._requests import request
 
 
-VERSION = "1.6.5.final.0"
+VERSION = "1.6.6.final.0"
 
 
 __version__ = get_version_pep440_compliant(VERSION)
diff --git a/cereja/_requests/_http.py b/cereja/_requests/_http.py
index 0eaf629..4c53123 100644
--- a/cereja/_requests/_http.py
+++ b/cereja/_requests/_http.py
@@ -20,6 +20,7 @@
 SOFTWARE.
 """
 import threading
+import time
 from urllib import request as urllib_req
 import json
 import io
@@ -107,20 +108,22 @@ class HttpResponse:
     CHUNK_SIZE = 1024 * 1024 * 1  # 1MB
 
     def __init__(self, request: 'HttpRequest', save_on_path=None, timeout=None):
-        self._request = request
-        self._save_on_path = save_on_path
-        self._headers = {}
-        self._total_completed = '0.0%'
-        self._timeout = timeout
         self._finished = False
+        self._timeout = timeout
         self._code = None
         self._status = None
         self._data = None
+        self._headers = {}
+        self._request = request
+        self._save_on_path = save_on_path
+        self._total_completed = '0.0%'
         self._th_request = threading.Thread(target=self.__request)
         self._th_request.start()
+        while not self.headers:
+            time.sleep(0.1)  # await headers
 
     def __request(self):
-        # TODO: send to HttpRequest
+        # TODO: send to HttpRequest ?
         try:
             with urllib_req.urlopen(self._request.urllib_req, timeout=self._timeout) as req_file:
                 self._code = req_file.status
diff --git a/cereja/config/__init__.py b/cereja/config/__init__.py
index 4b6c792..d27b3f8 100644
--- a/cereja/config/__init__.py
+++ b/cereja/config/__init__.py
@@ -1,2 +1,2 @@
 from .conf import *
-from ._constants import ENG_CONTRACTIONS, PUNCTUATION, VALID_LANGUAGE_CHAR, LANGUAGES, STOP_WORDS
+from ._constants import ENG_CONTRACTIONS, PUNCTUATION, VALID_LANGUAGE_CHAR, LANGUAGES, STOP_WORDS, DATA_UNIT_MAP
diff --git a/cereja/config/_constants.py b/cereja/config/_constants.py
index d568e65..a736091 100644
--- a/cereja/config/_constants.py
+++ b/cereja/config/_constants.py
@@ -21,7 +21,7 @@
 SOFTWARE.
 """
 
-from cereja.system.unicode import Unicode
+from ..system.unicode import Unicode
 import string
 
 ENG_CONTRACTIONS = {
@@ -145,8 +145,8 @@
 }
 PUNCTUATION = [',', '!', '#', '$', '%', "'", '*', '+', '-', '.', '/', '?', '@', '\\', '^', '_', '~']
 STOP_WORDS = {
-    'english': ['is', 'are', 'am', 'at', 'a', 'an', 'of', 'the'],
-    'portuguese': ['em', 'do', 'da', 'de', 'pro', 'pra', 'no', 'dos', 'na', 'os', 'à', 'pela', 'nas', 'num',\
+    'english':    ['is', 'are', 'am', 'at', 'a', 'an', 'of', 'the'],
+    'portuguese': ['em', 'do', 'da', 'de', 'pro', 'pra', 'no', 'dos', 'na', 'os', 'à', 'pela', 'nas', 'num',
                    'das', 'numa', 'nos', 'às', 'pelas', 'as', 'uns', 'umas', 'lhe', 'é', 'o', 'a']
 }
 LANGUAGES = {'english', 'portuguese'}
@@ -155,3 +155,10 @@
 VALID_LANGUAGE_CHAR.update(string.punctuation)
 VALID_LANGUAGE_CHAR.update(PUNCTUATION)
 VALID_LANGUAGE_CHAR.update(' ')
+
+DATA_UNIT_MAP = {"B":  1.e0,
+                 "KB": 1.e3,
+                 "MB": 1.e6,
+                 "GB": 1.e9,
+                 "TB": 1.e12
+                 }
diff --git a/cereja/display/_display.py b/cereja/display/_display.py
index 6972a19..af97a8a 100644
--- a/cereja/display/_display.py
+++ b/cereja/display/_display.py
@@ -621,7 +621,7 @@ def completed(self):
 
     @staticmethod
     def die_all():
-        for progress in Progress._progresses:
+        for progress in Progress._progresses.values():
             progress.stop()
 
     def _parse_states(self):
diff --git a/cereja/file/_io.py b/cereja/file/_io.py
index a0b6e39..0e5c6ab 100644
--- a/cereja/file/_io.py
+++ b/cereja/file/_io.py
@@ -10,10 +10,11 @@
 from typing import Any, List, Union, Type, TextIO, Iterable, Tuple, KeysView, ItemsView, ValuesView
 import json
 
-import cereja
 from .._requests import request
 from zipfile import ZipFile, ZIP_DEFLATED
 
+from ..display import Progress
+from ..config import DATA_UNIT_MAP
 from ..system import Path, mkdir
 from ..array import get_cols, flatten, get_shape
 from ..utils import is_sequence, clipboard
@@ -26,12 +27,7 @@
 
 
 class _IFileIO(metaclass=ABCMeta):
-    _size_map = {"B":  1.e0,
-                 "KB": 1.e3,
-                 "MB": 1.e6,
-                 "GB": 1.e9,
-                 "TB": 1.e12
-                 }
+    _size_map = DATA_UNIT_MAP
     _dont_read = [".pyc"]
     _ignore_dir = [".git"]
     _date_format = "%Y-%m-%d %H:%M:%S"
@@ -767,7 +763,7 @@ def unzip(cls, file_path, save_on: str = None, members: List = None, k=None, is_
             members = members or sample(myzip.namelist(), k, is_random)
             if save_on:
                 mkdir(save_on)
-            myzip.extractall(save_on, members=cereja.Progress.prog(list(members), 'Extracting'))
+            myzip.extractall(save_on, members=Progress.prog(list(members), name='Extracting'))
 
     def _save_fp(self, fp: Union[TextIO, BytesIO]) -> None:
         raise NotImplementedError
diff --git a/cereja/utils/_utils.py b/cereja/utils/_utils.py
index 2919131..a574133 100644
--- a/cereja/utils/_utils.py
+++ b/cereja/utils/_utils.py
@@ -126,7 +126,7 @@ def clipboard() -> str:
     return _get_tkinter().clipboard_get()
 
 
-def truncate(text: Union[str, bytes], k=4):
+def truncate(text: Union[str, bytes], k=15):
     """
     Truncate text.
     eg.:
@@ -138,10 +138,11 @@ def truncate(text: Union[str, bytes], k=4):
     @param k: natural numbers, default is 4
     """
     assert isinstance(text, (str, bytes)), TypeError(f"{type(text)} isn't valid. Expected str or bytes")
-    if k > len(text) or k < 0:
+    if k > len(text) or k <= 4:
         return text
-    trunc_chars = '...' if isinstance(text, str) else b'...'
-    return text[:k] + trunc_chars
+    n = int((k - 4) / 2)  # k is the max length of text, 4 is the length of truncate symbol
+    trunc_chars = '....' if isinstance(text, str) else b'....'
+    return text[:n] + trunc_chars + text[-n:]
 
 
 def obj_repr(obj_, attr_limit=10, val_limit=3, show_methods=False, show_private=False, deep=3):
diff --git a/tests/testsutils.py b/tests/testsutils.py
index dc21054..5c9e436 100644
--- a/tests/testsutils.py
+++ b/tests/testsutils.py
@@ -137,10 +137,11 @@ def test_time_format(self):
         pass
 
     def test_truncate(self):
-        self.assertEqual(utils.truncate("Cereja is fun.", k=3), 'Cer...')
-        self.assertEqual(utils.truncate(b"Cereja is fun.", k=3), b'Cer...')
+        self.assertEqual(utils.truncate("Cereja is fun.", k=3), "Cereja is fun.")
+        self.assertEqual(utils.truncate(b"Cereja is fun.", k=3), b"Cereja is fun.")
         self.assertEqual(utils.truncate("Cereja is fun.", k=-1), "Cereja is fun.")
         self.assertEqual(utils.truncate("Cereja is fun.", k=1000), "Cereja is fun.")
+        self.assertEqual(utils.truncate("Cereja is fun.", k=10), "Cer....un.")
 
         self.assertRaises(AssertionError, utils.truncate, 1123)