diff --git a/.github/workflows/4testing-build.yml b/.github/workflows/4testing-build.yml
index 4343507..4216777 100644
--- a/.github/workflows/4testing-build.yml
+++ b/.github/workflows/4testing-build.yml
@@ -125,7 +125,7 @@ jobs:
 
           export PRODUCT_EDITION
           export PACKAGE_VERSION=${PRODUCT_VERSION}-${BUILD_NUMBER}
-          export PACKAGE_BASEURL=${{ secrets.REPO_BASEURL }}/${RELEASE_BRANCH}/ubuntu
+          export PACKAGE_BASEURL=${{ secrets.REPO_BASEURL_OLD }}/${RELEASE_BRANCH}/ubuntu
           export RELEASE_BRANCH
           export PLATFORM
           export DOCKERFILE=Dockerfile
diff --git a/.github/workflows/stable-build.yml b/.github/workflows/stable-build.yml
index d8278f2..26eff41 100644
--- a/.github/workflows/stable-build.yml
+++ b/.github/workflows/stable-build.yml
@@ -120,7 +120,7 @@ jobs:
         run: |
            set -eux
            export PRODUCT_EDITION=${{ matrix.edition }}
-           export PACKAGE_BASEURL=${{ secrets.REPO_BASEURL }}/testing/ubuntu
+           export PACKAGE_BASEURL=${{ secrets.REPO_BASEURL_OLD }}/testing/ubuntu
            export DOCKERFILE=Dockerfile
            export BASE_IMAGE=ubuntu:20.04
            export PG_VERSION=12
diff --git a/Dockerfile b/Dockerfile
index 5ebd56d..55e4b6e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,6 +17,7 @@ RUN echo "#!/bin/sh\nexit 0" > /usr/sbin/policy-rc.d && \
     chmod 644 /etc/apt/trusted.gpg.d/onlyoffice.gpg && \
     locale-gen en_US.UTF-8 && \
     echo ttf-mscorefonts-installer msttcorefonts/accepted-mscorefonts-eula select true | debconf-set-selections && \
+    wget -O - https://packagecloud.io/install/repositories/rabbitmq/rabbitmq-server/script.deb.sh | bash && \
     apt-get -yq install \
         adduser \
         apt-utils \
@@ -45,7 +46,7 @@ RUN echo "#!/bin/sh\nexit 0" > /usr/sbin/policy-rc.d && \
         postgresql \
         postgresql-client \
         pwgen \
-        rabbitmq-server \
+        rabbitmq-server=3.10* \
         redis-server \
         software-properties-common \
         sudo \
diff --git a/run-document-server.sh b/run-document-server.sh
index fd183a3..79404e6 100755
--- a/run-document-server.sh
+++ b/run-document-server.sh
@@ -73,7 +73,8 @@ NGINX_ONLYOFFICE_EXAMPLE_CONF="${NGINX_ONLYOFFICE_EXAMPLE_PATH}/includes/ds-exam
 
 NGINX_CONFIG_PATH="/etc/nginx/nginx.conf"
 NGINX_WORKER_PROCESSES=${NGINX_WORKER_PROCESSES:-1}
-NGINX_WORKER_CONNECTIONS=${NGINX_WORKER_CONNECTIONS:-$(ulimit -n)}
+# Limiting the maximum number of simultaneous connections due to possible memory shortage
+[ $(ulimit -n) -gt 1048576 ] && NGINX_WORKER_CONNECTIONS=${NGINX_WORKER_CONNECTIONS:-1048576} || NGINX_WORKER_CONNECTIONS=${NGINX_WORKER_CONNECTIONS:-$(ulimit -n)}
 
 JWT_ENABLED=${JWT_ENABLED:-true}
 
@@ -199,7 +200,7 @@ parse_rabbitmq_url(){
   # extract the host
   local hostport="$(echo ${url/$userpass@/} | cut -d/ -f1)"
   # by request - try to extract the port
-  local port="$(echo $hostport | sed -e 's,^.*:,:,g' -e 's,.*:\([0-9]*\).*,\1,g' -e 's,[^0-9],,g')"
+  local port="$(echo $hostport | grep : | sed -r 's_^.*:+|/.*$__g')"
 
   local host
   if [ -n "$port" ]; then