diff --git a/.docker/app/Dockerfile b/.docker/app/Dockerfile
index a59d1a3..7999307 100644
--- a/.docker/app/Dockerfile
+++ b/.docker/app/Dockerfile
@@ -33,23 +33,23 @@ RUN apk add -U --no-cache \
       imagemagick-dev=7.1.1.26-r0 \
       libxpm-dev=3.5.17-r0 \
       libwebp-dev=1.3.2-r0 \
-      php81=8.1.27-r0 \
-      php81-apache2=8.1.27-r0 \
-      php81-dev=8.1.27-r0 \
-      php81-pear=8.1.27-r0 \
-      php81-session=8.1.27-r0 \
-      php81-ctype=8.1.27-r0 \
-      php81-pdo=8.1.27-r0 \
-      php81-iconv=8.1.27-r0 \
-      php81-gd=8.1.27-r0 \
-      php81-openssl=8.1.27-r0 \
-      php81-mysqlnd=8.1.27-r0 \
-      php81-mysqli=8.1.27-r0 \
-      php81-pdo_mysql=8.1.27-r0 \
-      php81-fileinfo=8.1.27-r0 \
-      php81-mbstring=8.1.27-r0 \
-      php81-phar=8.1.27-r0 \
-      php81-tokenizer=8.1.27-r0 \
+      php81=8.1.28-r0 \
+      php81-apache2=8.1.28-r0 \
+      php81-dev=8.1.28-r0 \
+      php81-pear=8.1.28-r0 \
+      php81-session=8.1.28-r0 \
+      php81-ctype=8.1.28-r0 \
+      php81-pdo=8.1.28-r0 \
+      php81-iconv=8.1.28-r0 \
+      php81-gd=8.1.28-r0 \
+      php81-openssl=8.1.28-r0 \
+      php81-mysqlnd=8.1.28-r0 \
+      php81-mysqli=8.1.28-r0 \
+      php81-pdo_mysql=8.1.28-r0 \
+      php81-fileinfo=8.1.28-r0 \
+      php81-mbstring=8.1.28-r0 \
+      php81-phar=8.1.28-r0 \
+      php81-tokenizer=8.1.28-r0 \
       php81-pecl-imagick=3.7.0-r4 \
 &&  wget --no-verbose "https://github.com/omeka/omeka-s/releases/download/v4.0.4/omeka-s-4.0.4.zip" -O latest_omeka_s.zip \
 &&  unzip -q latest_omeka_s.zip -d /var/www/ \