diff --git a/config/nginx/onlyoffice.conf b/config/nginx/onlyoffice.conf
index b27ca3d32bb..9130e2a14ef 100644
--- a/config/nginx/onlyoffice.conf
+++ b/config/nginx/onlyoffice.conf
@@ -119,6 +119,7 @@ server {
 		local redis_host = "127.0.0.1"
 		local redis_port = 6379
 		local redis_pass = ""
+		local redis_db = 0
 
 		red:set_timeout(1000) -- 1 second
 
@@ -136,6 +137,14 @@ server {
 			end
 		end
 
+		if redis_db ~= 0 then
+			local res, err = red:select(redis_db)
+			if not res then
+				ngx.log(ngx.ERR, "failed to select redis db: ", err)
+				return
+			end
+		end
+
 		local csp, err = red:hget(key, "data")
 
 		if csp == ngx.null or not csp then
diff --git a/install/docker/.env b/install/docker/.env
index 1bbaf68d352..03a618f248e 100644
--- a/install/docker/.env
+++ b/install/docker/.env
@@ -75,6 +75,7 @@
     REDIS_PORT=6379
     REDIS_USER_NAME=""
     REDIS_PASSWORD=""
+    REDIS_DB="0"
 
 # rabbitmq # 
     RABBIT_CONTAINER_NAME=${CONTAINER_PREFIX}rabbitmq
diff --git a/install/docker/docker-entrypoint.py b/install/docker/docker-entrypoint.py
index 152d124659c..30f655d8a9b 100644
--- a/install/docker/docker-entrypoint.py
+++ b/install/docker/docker-entrypoint.py
@@ -67,6 +67,7 @@
 REDIS_USER_NAME = {"User": os.environ["REDIS_USER_NAME"]} if environ.get("REDIS_USER_NAME") else None
 REDIS_PASSWORD = {"Password": os.environ["REDIS_PASSWORD"]} if environ.get("REDIS_PASSWORD") else None
 REDIS_CONNECTION_HOST = REDIS_HOST if REDIS_HOST else REDIS_CONTAINER_NAME
+REDIS_DB = os.environ["REDIS_DB"] if environ.get("REDIS_DB") else 0
 
 RABBIT_CONTAINER_NAME = os.environ["RABBIT_CONTAINER_NAME"] if environ.get("RABBIT_CONTAINER_NAME") else "onlyoffice-rabbitmq"
 RABBIT_PROTOCOL = os.environ["RABBIT_PROTOCOL"] if environ.get("RABBIT_PROTOCOL") else "amqp"
@@ -254,6 +255,7 @@ def writeJsonFile(jsonFile, jsonData, indent=4):
 jsonData = openJsonFile(filePath)
 updateJsonData(jsonData,"$.Redis.Hosts.[0].Host", REDIS_CONNECTION_HOST)
 updateJsonData(jsonData,"$.Redis.Hosts.[0].Port", REDIS_PORT)
+updateJsonData(jsonData,"$.Redis.Database", REDIS_DB)
 jsonData["Redis"].update(REDIS_USER_NAME) if REDIS_USER_NAME is not None else None
 jsonData["Redis"].update(REDIS_PASSWORD) if REDIS_PASSWORD is not None else None
 writeJsonFile(filePath, jsonData)
diff --git a/install/docker/docspace.yml b/install/docker/docspace.yml
index 05388a643c6..12559cc3270 100644
--- a/install/docker/docspace.yml
+++ b/install/docker/docspace.yml
@@ -42,6 +42,7 @@ x-service: &x-service-base
     REDIS_PORT: ${REDIS_PORT}
     REDIS_USER_NAME: ${REDIS_USER_NAME}
     REDIS_PASSWORD: ${REDIS_PASSWORD}
+    REDIS_DB: ${REDIS_DB}
     RABBIT_CONTAINER_NAME: ${RABBIT_CONTAINER_NAME}
     RABBIT_PROTOCOL: ${RABBIT_PROTOCOL}
     RABBIT_HOST: ${RABBIT_HOST}
@@ -233,6 +234,7 @@ services:
       - REDIS_HOST=${REDIS_HOST}
       - REDIS_PORT=${REDIS_PORT}
       - REDIS_PASSWORD=${REDIS_PASSWORD}
+      - REDIS_DB=${REDIS_DB}
       - SERVICE_PORT=${SERVICE_PORT}
       - DASHBOARDS_CONTAINER_NAME=${DASHBOARDS_CONTAINER_NAME}
       - DASHBOARDS_USERNAME=${DASHBOARDS_USERNAME}
diff --git a/install/docker/prepare-nginx-router.sh b/install/docker/prepare-nginx-router.sh
index 5d3a0870b7b..7836b131241 100755
--- a/install/docker/prepare-nginx-router.sh
+++ b/install/docker/prepare-nginx-router.sh
@@ -3,10 +3,12 @@ WRONG_PORTAL_NAME_URL=${WRONG_PORTAL_NAME_URL:-""}
 REDIS_HOST=${REDIS_HOST:-"${REDIS_CONTAINER_NAME}"}
 REDIS_PORT=${REDIS_PORT:-"6379"}
 REDIS_PASSWORD=${REDIS_PASSWORD:-""}
+REDIS_DB=${REDIS_DB:-"0"}
 
 envsubst '$MAP_HASH_BUCKET_SIZE,$COUNT_WORKER_CONNECTIONS' < /etc/nginx/nginx.conf.template > /usr/local/openresty/nginx/conf/nginx.conf
 sed -i "s~\(redis_host =\).*~\1 \"$REDIS_HOST\"~" /etc/nginx/conf.d/onlyoffice.conf
 sed -i "s~\(redis_port =\).*~\1 $REDIS_PORT~" /etc/nginx/conf.d/onlyoffice.conf
 sed -i "s~\(redis_pass =\).*~\1 \"$REDIS_PASSWORD\"~" /etc/nginx/conf.d/onlyoffice.conf
+sed -i "s~\(redis_db =\).*~\1 $REDIS_DB~" /etc/nginx/conf.d/onlyoffice.conf
 sed -i "s~\(\"wrongPortalNameUrl\":\).*,~\1 \"${WRONG_PORTAL_NAME_URL}\",~g" /var/www/public/scripts/config.json
 echo "${DASHBOARDS_USERNAME:-onlyoffice}:$(openssl passwd -6 -stdin <<< "${DASHBOARDS_PASSWORD:-onlyoffice}")" > /etc/nginx/.htpasswd_dashboards