diff --git a/Dockerfile b/Dockerfile
index 691a3bc..d044f54 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,8 +12,8 @@ RUN apk add --no-cache --update git \
         mysql-client \
         patch \
         rsync \
-        libpng libpng-dev \
-    && docker-php-ext-install gd pdo pdo_mysql \
+        libpng libpng-dev libzip-dev \
+    && docker-php-ext-install gd pdo pdo_mysql zip \
     && apk del libpng-dev \
     && rm -rf /var/cache/apk/* \
     && curl -L -o /usr/local/bin/composer https://github.com/composer/composer/releases/download/${COMPOSER_VERSION}/composer.phar \
diff --git a/README.md b/README.md
index 23c295e..0371c8d 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,6 @@ A few modifications:
 
 - added composer v2.5.x
 - installed several packages, e.g. git and mysql-client
-- added php extensions - gd, pdo_mysql
+- added php extensions - gd, pdo_mysql, zip
 
 Published in GHCR - https://github.com/morpht/ci-php/pkgs/container/ci-php