diff --git a/web/Dockerfile b/web/Dockerfile
index 91a2797..b9eff75 100644
--- a/web/Dockerfile
+++ b/web/Dockerfile
@@ -30,7 +30,7 @@ RUN a2dissite 000-default
 
 # PHP 7.2
 RUN apt-get install -y libapache2-mod-php php7.2 php7.2-cli php-crypt-gpg php7.2-dev php7.2-json php7.2-mysql php7.2-opcache php7.2-readline php7.2-redis php7.2-xml
-RUN apt-get install -y php-pear pkg-config libbson-1.0 libmongoc-1.0-0 php-xml php-dev
+RUN apt-get install -y php-pear pkg-config libbson-1.0 libmongoc-1.0-0 php-xml php-dev php-gd
 # install MySQL PDO extension
 RUN apt-get install -y php-mysql