diff --git a/Dockerfile b/Dockerfile
index b88ddf89..68df191a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN rm /app/.npmrc
 RUN yarn install && yarn run build:docker
 
 # images
-FROM ubuntu:latest
+FROM ubuntu:20.04
 
 # set as non-interactive
 ENV DEBIAN_FRONTEND noninteractive
diff --git a/Dockerfile.cn b/Dockerfile.cn
index 225880bc..6a359e11 100644
--- a/Dockerfile.cn
+++ b/Dockerfile.cn
@@ -19,7 +19,7 @@ WORKDIR /app
 RUN yarn install && yarn run build:docker
 
 # images
-FROM ubuntu:latest
+FROM ubuntu:20.04
 
 # set as non-interactive
 ENV DEBIAN_FRONTEND noninteractive
diff --git a/Dockerfile.local b/Dockerfile.local
index 4a1956b7..aeffb969 100644
--- a/Dockerfile.local
+++ b/Dockerfile.local
@@ -19,7 +19,7 @@ WORKDIR /app
 RUN yarn install && yarn run build:docker
 
 # images
-FROM ubuntu:latest
+FROM ubuntu:20.04
 
 # set as non-interactive
 ENV DEBIAN_FRONTEND noninteractive