Update centos.sh

scripts/update/centos.sh

@@ -37,6 +37,7 @@ else
     cd /www/server/mdserver-web && pip3 install -r /www/server/mdserver-web/requirements.txt
 fi
 
+pip install --upgrade pip
 pip3 install gunicorn==20.1.0
 pip3 install gevent==21.1.2
 pip3 install gevent-websocket==0.10.1
@@ -48,6 +49,7 @@ pip3 install pymongo
 
 
 
+
 if [ -f /etc/init.d/mw ]; then
     sh /etc/init.d/mw stop && rm -rf  /www/server/mdserver-web/scripts/init.d/mw && rm -rf  /etc/init.d/mw
 fi