diff --git a/jenkins/common/sonic-swss-common-build-ubuntu-20_04/Dockerfile b/jenkins/common/sonic-swss-common-build-ubuntu-20_04/Dockerfile
index 88a7f1d6ccd4..d5ebe26e936a 100644
--- a/jenkins/common/sonic-swss-common-build-ubuntu-20_04/Dockerfile
+++ b/jenkins/common/sonic-swss-common-build-ubuntu-20_04/Dockerfile
@@ -2,10 +2,10 @@ FROM ubuntu:focal
 
 ENV DEBIAN_FRONTEND=noninteractive
 
-RUN apt-get update
+RUN apt-get update  # 20210106 invalidate docker build cache
 RUN apt-get install -y make libtool m4 autoconf dh-exec debhelper cmake pkg-config \
                        libhiredis-dev libnl-3-dev libnl-genl-3-dev libnl-route-3-dev libnl-nf-3-dev swig3.0 \
-                       libpython2.7-dev libgtest-dev
+                       libpython2.7-dev libgtest-dev libboost-dev
 
 RUN apt-get install -y sudo
 RUN apt-get install -y redis-server redis-tools