diff --git a/docker-compose.yml b/docker-compose.yml
index 52f0cf31..18ff561e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -209,6 +209,7 @@ services:
           - INSTALL_GHOSTSCRIPT=${PHP_WORKER_INSTALL_GHOSTSCRIPT}
           - INSTALL_SWOOLE=${PHP_WORKER_INSTALL_SWOOLE}
           - INSTALL_FFMPEG=${PHP_WORKER_INSTALL_FFMPEG}
+          - INSTALL_GMP=${PHP_WORKER_INSTALL_GMP}
           - PUID=${PHP_WORKER_PUID}
           - PGID=${PHP_WORKER_PGID}
       volumes:
diff --git a/env-example b/env-example
index b5986c19..810dee10 100644
--- a/env-example
+++ b/env-example
@@ -197,6 +197,8 @@ PHP_WORKER_INSTALL_AMQP=false
 PHP_WORKER_INSTALL_GHOSTSCRIPT=false
 PHP_WORKER_INSTALL_SWOOLE=false
 PHP_WORKER_INSTALL_FFMPEG=false
+PHP_WORKER_INSTALL_GMP=false
+
 PHP_WORKER_PUID=1000
 PHP_WORKER_PGID=1000
 
diff --git a/php-worker/Dockerfile b/php-worker/Dockerfile
index dd7ed040..328a5417 100644
--- a/php-worker/Dockerfile
+++ b/php-worker/Dockerfile
@@ -103,6 +103,14 @@ RUN if [ $INSTALL_GHOSTSCRIPT = true ]; then \
     apk --update add ghostscript \
 ;fi
 
+#Install GMP package:
+ARG INSTALL_GMP=false
+RUN if [ ${INSTALL_GMP} = true ]; then \
+   apk add --update --no-cache gmp gmp-dev \
+   && docker-php-ext-install gmp \
+;fi
+
+
 RUN rm /var/cache/apk/* \
     && mkdir -p /var/www