diff --git a/setup.py b/setup.py
index 0218786023f9f27119866e9aac3dbd50f1890fa8..c6baa6c3e1db5b13f8eaa7bc9ceddaa0220e1445 100644
--- a/setup.py
+++ b/setup.py
@@ -30,12 +30,8 @@ def python_version():
 max_version, mid_version, min_version = python_version()
 
 REQUIRED_PACKAGES = [
-    'numpy >= 1.12.0',
-    'six >= 1.10.0',
-    'protobuf >= 3.1.0',
-    'pyyaml',
-    'Pillow',
-    "visualdl >= 1.3.0",
+    'numpy >= 1.12.0', 'six >= 1.10.0', 'protobuf >= 3.1.0', 'pyyaml', 'Pillow',
+    "visualdl >= 1.3.0", "chardet == 3.0.4"
 ]
 
 if max_version < 3: