diff --git a/Dockerfile b/Dockerfile
index bb479c76..bb485b84 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,5 @@
 FROM centos:centos7 as installing
-RUN cd /etc/yum.repos.d && wget https://repo.codeit.guru/codeit.el`rpm -q --qf "%{VERSION}" $(rpm -q --whatprovides redhat-release)`.repo \
-    && yum update -y \
+RUN yum update -y \
     && yum install -y wget tar unzip dos2unix patch \
     && yum clean all