diff --git a/Telegram/build/docker/centos_env/Dockerfile b/Telegram/build/docker/centos_env/Dockerfile
index 157f0e575..3d33100d3 100644
--- a/Telegram/build/docker/centos_env/Dockerfile
+++ b/Telegram/build/docker/centos_env/Dockerfile
@@ -20,8 +20,8 @@ ENV CMAKE_VER 3.21.3
 ENV CMAKE_FILE cmake-$CMAKE_VER-Linux-x86_64.sh
 ENV PATH ${PATH}:${QT5_PREFIX}/bin:${QT6_PREFIX}/bin
 
-RUN yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
-RUN yum -y install https://packages.endpoint.com/rhel/7/os/x86_64/endpoint-repo-1.7-1.x86_64.rpm
+RUN yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm && yum clean all
+RUN yum -y install https://packages.endpoint.com/rhel/7/os/x86_64/endpoint-repo-1.7-1.x86_64.rpm && yum clean all
 RUN yum -y install centos-release-scl && yum clean all
 
 RUN yum -y install git meson ninja-build autoconf automake libtool \