diff --git a/Dockerfile b/Dockerfile
index 973d268..978a149 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,33 +1,33 @@
-FROM docker.io/alpine:3.17 AS builder
+FROM docker.io/alpine:3.18 AS builder
 
 RUN apk add --no-cache \
-  php81 \
-  php81-phar \
-  php81-mbstring \
-  php81-openssl \
-  php81-ctype \
-  php81-gd \
-  php81-dom \
-  php81-xml \
-  php81-ldap \
-  php81-xmlreader \
-  php81-xmlwriter
+  php82 \
+  php82-phar \
+  php82-mbstring \
+  php82-openssl \
+  php82-ctype \
+  php82-gd \
+  php82-dom \
+  php82-xml \
+  php82-ldap \
+  php82-xmlreader \
+  php82-xmlwriter
 
-ENV COMPOSER_VERSION=2.1.6
-ENV COMPOSER_SHA256_SUM=72524ccebcb071968eb83284507225fdba59f223719b2b3f333d76c8a9ac6b72
+ENV COMPOSER_VERSION=2.6.3
+ENV COMPOSER_SHA256_SUM=e58a390cac0df45ccf5a3d95ae94fa239eded8b7907fa2c8f752f020304fc9b1
 RUN wget https://getcomposer.org/download/$COMPOSER_VERSION/composer.phar
 RUN echo "$COMPOSER_SHA256_SUM  composer.phar" | sha256sum -c - || exit 1
 RUN mv composer.phar /usr/bin/composer
 RUN chmod +x /usr/bin/composer
 
-ENV VERSION=1.6.1
-ENV SHA256_SUM=46c2f6ba34bcb7e57e47cb034bf338e5fc7dcceddda9212a2ef3bd3146d97bed
+ENV VERSION=1.6.3
+ENV SHA256_SUM=5e60ccd50f62fb00c43d335ec08a9bdafbf2bdd02552256cc4009908b39ad98f
 RUN wget https://github.com/roundcube/roundcubemail/releases/download/$VERSION/roundcubemail-$VERSION-complete.tar.gz
 RUN echo "$SHA256_SUM  roundcubemail-$VERSION-complete.tar.gz" | sha256sum -c - || exit 1
 RUN mkdir -p /var/lib/roundcube
 RUN tar xzf roundcubemail-$VERSION-complete.tar.gz -C /var/lib/roundcube --strip 1
 
-FROM docker.io/thallian/php8-fpm:3.17
+FROM docker.io/thallian/php8-fpm:3.18-8.2
 
 RUN apk add --no-cache \
   openssl \
@@ -36,33 +36,33 @@ RUN apk add --no-cache \
   postgresql-client \
   aspell \
   ca-certificates \
-  php81 \
-  php81-imap \
-  php81-dom \
-  php81-json \
-  php81-xml \
-  php81-session \
-  php81-pdo \
-  php81-pdo_pgsql \
-  php81-sockets \
-  php81-exif \
-  php81-iconv \
-  php81-openssl \
-  php81-mbstring \
-  php81-sockets \
-  php81-zip \
-  php81-pspell \
-  php81-pecl-apcu \
-  php81-gd \
-  php81-ctype \
-  php81-xmlreader \
-  php81-xmlwriter \
-  php81-tokenizer \
-  php81-curl \
-  php81-simplexml \
-  php81-xml \
-  php81-dom \
-  php81-intl
+  php82 \
+  php82-imap \
+  php82-dom \
+  php82-json \
+  php82-xml \
+  php82-session \
+  php82-pdo \
+  php82-pdo_pgsql \
+  php82-sockets \
+  php82-exif \
+  php82-iconv \
+  php82-openssl \
+  php82-mbstring \
+  php82-sockets \
+  php82-zip \
+  php82-pspell \
+  php82-pecl-apcu \
+  php82-gd \
+  php82-ctype \
+  php82-xmlreader \
+  php82-xmlwriter \
+  php82-tokenizer \
+  php82-curl \
+  php82-simplexml \
+  php82-xml \
+  php82-dom \
+  php82-intl
 
 COPY --from=builder --chown=nginx:nginx /var/lib/roundcube /var/lib/roundcube