diff --git a/buster_php7/Dockerfile-base b/buster_php7/Dockerfile-base
index ff6d6bb..4e84f6c 100644
--- a/buster_php7/Dockerfile-base
+++ b/buster_php7/Dockerfile-base
@@ -19,7 +19,7 @@ RUN apt-get update \
     php-mbstring \
     php-net-smtp \
     php-net-socket \
-    php7.2-opcache \
+    php-opcache \
     php-pspell \
     php-sqlite3 \
     psmisc \
@@ -28,4 +28,4 @@ RUN apt-get update \
 
 ADD --chown=root:root nsswitch.conf libnss-ldap.conf /etc/
 
-RUN rm -f /etc/php/7.2/fpm/pool.d/www.conf
+RUN rm -f /etc/php/7.3/fpm/pool.d/www.conf
diff --git a/buster_php7/start-fpm.sh b/buster_php7/start-fpm.sh
index 208dc03..f2c2580 100755
--- a/buster_php7/start-fpm.sh
+++ b/buster_php7/start-fpm.sh
@@ -4,8 +4,8 @@ set -e
 
 sed "s/@user@/${FPM_USER}/g; s/@variant@/${FPM_VARIANT}/g" \
     < /usr/local/etc/fpm-pool.conf.tmpl \
-    > "/etc/php/7.2/fpm/pool.d/${FPM_USER}.conf"
+    > "/etc/php/7.3/fpm/pool.d/${FPM_USER}.conf"
 
 /etc/init.d/nullmailer start
 mkdir -p /run/php
-/usr/sbin/php-fpm7.2 --nodaemonize
+/usr/sbin/php-fpm7.3 --nodaemonize