diff --git a/Dockerfile b/Dockerfile
index 8d8b2c2..9870e8d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,10 @@
-FROM ubuntu:20.04
-LABEL maintainer Ascensio System SIA <support@onlyoffice.com>
+FROM debian:latest
+LABEL maintainer="jiriks74"
+
+RUN echo "deb http://deb.debian.org/debian bullseye main contrib non-free\ndeb http://deb.debian.org/debian-security/ bullseye-security main contrib non-free\ndeb http://deb.debian.org/debian bullseye-updates main contrib non-free\ndeb http://deb.debian.org/debian bullseye-backports main" > /etc/apt/sources.list 
+
+RUN mkdir /build
+RUN cd /build
 
 ENV LANG=en_US.UTF-8 LANGUAGE=en_US:en LC_ALL=en_US.UTF-8 DEBIAN_FRONTEND=noninteractive PG_VERSION=12
 
@@ -31,7 +36,7 @@ RUN echo "#!/bin/sh\nexit 0" > /usr/sbin/policy-rc.d && \
         libxml2 \
         libxss1 \
         libxtst6 \
-        mysql-client \
+        mariadb-client \
         nano \
         net-tools \
         netcat-openbsd \
@@ -62,7 +67,41 @@ RUN echo "#!/bin/sh\nexit 0" > /usr/sbin/policy-rc.d && \
     service rabbitmq-server stop && \
     service supervisor stop && \
     service nginx stop && \
-    rm -rf /var/lib/apt/lists/*
+
+RUN apt install qemu binfmt-support qemu-user-static -t bullseye-backports -y
+
+RUN dpkg --add-architecture amd64
+RUN apt update && apt install libgcc-s1 libgcc-s1:amd64 -y
+
+RUN cd /build && apt download libc6:amd64
+RUN dpkg-deb -R /build/libc6*.deb /build/libc6
+
+RUN sed -i 's/^Package: libc6$/Package: libc6-amd64/' /build/libc6/DEBIAN/control
+RUN sed -i 's/^Depends: libgcc-s1, libcrypt1$/#Depends: libgcc-s1, libcrypt1/' /build/libc6/DEBIAN/control
+
+RUN rm -rf /build/libc6/usr/share/doc
+RUN rm -rf /build/libc6/usr/share/lintian 
+
+RUN dpkg-deb -b /build/libc6 /build/libc6-modified.deb
+RUN dpkg -i /build/libc6-modified.deb
+
+RUN cd /build && apt download libstdc++6:amd64 
+RUN dpkg-deb -R /build/libstdc++6*.deb /build/stdc
+
+RUN sed -i 's/^Depends: gcc-10-base (= 10.2.1-6), libc6 (>= 2.23), libgcc-s1 (>= 4.2)$/#Depends: gcc-10-base (= 10.2.1-6), libc6 (>= 2.23), libgcc-s1 (>= 4.2)/' /build/stdc/DEBIAN/control 
+
+RUN dpkg-deb -b /build/stdc /build/libstdc++6-modified.deb
+RUN dpkg -i /build/libstdc++6-modified.deb
+
+RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys CB2DE8E5
+RUN echo "deb https://download.onlyoffice.com/repo/debian squeeze main" | tee /etc/apt/sources.list.d/onlyoffice.list
+
+RUN cd /build && apt update && apt download onlyoffice-documentserver:amd64
+RUN dpkg-deb -R /build/onlyoffice-documentserver*.deb /build/onlyoffice
+
+RUN sed -i 's/^Depends: debconf (>= 0.5) | debconf-2.0, adduser, ca-certificates, coreutils, curl, libasound2, libcairo2, libcurl3 | libcurl4, libcurl3-gnutls, libgconf-2-4, libgtk-3-0, libstdc++6 (>= 4.8.4), libxml2, libxss1, libxtst6, logrotate, mysql-client | mariadb-client, nginx-extras (>= 1.3.13), postgresql-client (>= 9.1), pwgen, supervisor (>= 3.0b2), xvfb, zlib1g$/Depends: debconf:arm64 (>= 0.5) | debconf-2.0:arm64, adduser:arm64, ca-certificates:arm64, coreutils:arm64, curl:arm64, libasound2:arm64, libcairo2:arm64, libcurl3:arm64 | libcurl4:arm64, libcurl3-gnutls:arm64, libgconf-2-4:arm64, libgtk-3-0:arm64, libstdc++6:amd64 (>= 4.8.4), libxml2:arm64, libxss1:arm64, libxtst6:arm64, logrotate:arm64, mysql-client:arm64 | mariadb-client:arm64, nginx-extras:arm64 (>= 1.3.13), postgresql-client:arm64 (>= 9.1), pwgen:arm64, supervisor:all (>= 3.0b2), xvfb:arm64, zlib1g:arm64/' /build/onlyoffice/DEBIAN/control
+
+RUN dpkg-deb -b /build/onlyoffice /build/onlyoffice-documentserver-modified.deb
 
 COPY config /app/ds/setup/config/
 COPY run-document-server.sh /app/ds/run-document-server.sh
@@ -75,15 +114,13 @@ ARG PACKAGE_URL="http://download.onlyoffice.com/install/documentserver/linux/${C
 
 ENV COMPANY_NAME=$COMPANY_NAME \
     PRODUCT_NAME=$PRODUCT_NAME
-
-RUN wget -q -P /tmp "$PACKAGE_URL" && \
-    apt-get -y update && \
-    service postgresql start && \
-    apt-get -yq install /tmp/$(basename "$PACKAGE_URL") && \
+ 
+RUN service postgresql start && \
+    apt-get -yq install /build/onlyoffice-documentserver-modified.deb && \
     service postgresql stop && \
     service supervisor stop && \
     chmod 755 /app/ds/*.sh && \
-    rm -f /tmp/$(basename "$PACKAGE_URL") && \
+    rm -rf /build/ && \
     rm -rf /var/log/$COMPANY_NAME && \
     rm -rf /var/lib/apt/lists/*
 
diff --git a/docker-compose.yml b/docker-compose.yml
index 51fafb2..c93b4b7 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -24,7 +24,7 @@ services:
       - '443:443'
     stdin_open: true
     restart: always
-    stop_grace_period: 60s
+    stop_grace_period: 120s
     volumes:
        - /var/www/onlyoffice/Data
        - /var/log/onlyoffice