diff --git a/Dockerfile b/Dockerfile
index 0bfa322..9af42a4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM ubuntu:18.04
 
 COPY build/java_policy /etc
 RUN buildDeps='software-properties-common git libtool cmake python-dev python3-pip python-pip libseccomp-dev' && \
-    apt-get update && apt-get install -y python python3.5 python-pkg-resources python3-pkg-resources gcc g++ $buildDeps && \
+    apt-get update && apt-get install -y python python3 python-pkg-resources python3-pkg-resources gcc g++ $buildDeps && \
     add-apt-repository ppa:openjdk-r/ppa && add-apt-repository ppa:longsleep/golang-backports && apt-get update && apt-get install -y golang-go openjdk-8-jdk && \
     pip3 install -I --no-cache-dir psutil gunicorn flask requests idna && \
     cd /tmp && git clone -b newnew  --depth 1 https://github.com/QingdaoU/Judger && cd Judger && \