diff --git a/requirements.txt b/requirements.txt
index bd08d2ba..de95f69d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,3 @@
-attrdict>=2.0.1
 Click>=7.0
 Flask>=1.1.1
 Flask-Cors>=3.0.8
@@ -13,8 +12,7 @@ protobuf>=3.8.0
 psutil>=5.6.1
 six>=1.12.0
 Werkzeug>=1.0.0
-tabulate>=0.8.6
 pandas>=1.0.4
 yapf>=0.30.0
 treelib>=1.6.1
-grpcio>=1.29.0
+grpcio>=1.27.3