diff --git a/15.0/apache/Dockerfile b/15.0/apache/Dockerfile
index 6fb2f0df..cf64a185 100644
--- a/15.0/apache/Dockerfile
+++ b/15.0/apache/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT: created by update.sh from Dockerfile-debian.template
-FROM php:7.2-apache-stretch
+FROM php:7.3-apache-stretch
 
 # entrypoint.sh and cron.sh dependencies
 RUN set -ex; \
@@ -35,6 +35,7 @@ RUN set -ex; \
         libpq-dev \
         libxml2-dev \
         libmagickwand-dev \
+        libzip-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
diff --git a/15.0/fpm-alpine/Dockerfile b/15.0/fpm-alpine/Dockerfile
index 2f69a09b..457a9006 100644
--- a/15.0/fpm-alpine/Dockerfile
+++ b/15.0/fpm-alpine/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT: created by update.sh from Dockerfile-alpine.template
-FROM php:7.2-fpm-alpine3.9
+FROM php:7.3-fpm-alpine3.9
 
 # entrypoint.sh and cron.sh dependencies
 RUN set -ex; \
@@ -26,6 +26,7 @@ RUN set -ex; \
         libpng-dev \
         libmemcached-dev \
         libxml2-dev \
+        libzip-dev \
         openldap-dev \
         pcre-dev \
         postgresql-dev \
diff --git a/15.0/fpm/Dockerfile b/15.0/fpm/Dockerfile
index 9334e15d..5d947088 100644
--- a/15.0/fpm/Dockerfile
+++ b/15.0/fpm/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT: created by update.sh from Dockerfile-debian.template
-FROM php:7.2-fpm-stretch
+FROM php:7.3-fpm-stretch
 
 # entrypoint.sh and cron.sh dependencies
 RUN set -ex; \
@@ -35,6 +35,7 @@ RUN set -ex; \
         libpq-dev \
         libxml2-dev \
         libmagickwand-dev \
+        libzip-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
diff --git a/16.0-beta/apache/Dockerfile b/16.0-beta/apache/Dockerfile
index 72f8b525..77df7442 100644
--- a/16.0-beta/apache/Dockerfile
+++ b/16.0-beta/apache/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT: created by update.sh from Dockerfile-debian.template
-FROM php:7.2-apache-stretch
+FROM php:7.3-apache-stretch
 
 # entrypoint.sh and cron.sh dependencies
 RUN set -ex; \
@@ -35,6 +35,7 @@ RUN set -ex; \
         libpq-dev \
         libxml2-dev \
         libmagickwand-dev \
+        libzip-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
diff --git a/16.0-beta/fpm-alpine/Dockerfile b/16.0-beta/fpm-alpine/Dockerfile
index 03bdbcb9..cc2406f7 100644
--- a/16.0-beta/fpm-alpine/Dockerfile
+++ b/16.0-beta/fpm-alpine/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT: created by update.sh from Dockerfile-alpine.template
-FROM php:7.2-fpm-alpine3.9
+FROM php:7.3-fpm-alpine3.9
 
 # entrypoint.sh and cron.sh dependencies
 RUN set -ex; \
@@ -26,6 +26,7 @@ RUN set -ex; \
         libpng-dev \
         libmemcached-dev \
         libxml2-dev \
+        libzip-dev \
         openldap-dev \
         pcre-dev \
         postgresql-dev \
diff --git a/16.0-beta/fpm/Dockerfile b/16.0-beta/fpm/Dockerfile
index 027ba062..292af647 100644
--- a/16.0-beta/fpm/Dockerfile
+++ b/16.0-beta/fpm/Dockerfile
@@ -1,5 +1,5 @@
 # DO NOT EDIT: created by update.sh from Dockerfile-debian.template
-FROM php:7.2-fpm-stretch
+FROM php:7.3-fpm-stretch
 
 # entrypoint.sh and cron.sh dependencies
 RUN set -ex; \
@@ -35,6 +35,7 @@ RUN set -ex; \
         libpq-dev \
         libxml2-dev \
         libmagickwand-dev \
+        libzip-dev \
     ; \
     \
     debMultiarch="$(dpkg-architecture --query DEB_BUILD_MULTIARCH)"; \
diff --git a/update.sh b/update.sh
index c5153f72..d645f4a1 100755
--- a/update.sh
+++ b/update.sh
@@ -2,7 +2,7 @@
 set -eo pipefail
 
 declare -A php_version=(
-	[default]='7.2'
+	[default]='7.3'
 	[14.0]='7.2'
 )