diff --git a/Dockerfile b/Dockerfile
index 88574a6..291a1dd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ RUN apt-get -qq update && apt-get -qq -y --no-install-recommends install \
     libfreetype6-dev \
     libjpeg62-turbo-dev \
     libmcrypt-dev \
-    libpng12-dev \
+    libpng-dev \
     libjpeg-dev \
     libmemcached-dev \
     zlib1g-dev \
@@ -24,12 +24,12 @@ RUN docker-php-ext-install exif && \
     docker-php-ext-enable exif
 
 RUN curl -J -L -s -k \
-    'https://github.com/omeka/Omeka/releases/download/v2.5/omeka-2.5.zip' \
+    'https://github.com/omeka/Omeka/releases/download/v3.1.1/omeka-3.1.1.zip' \
     -o /var/www/omeka.zip \
 &&  unzip -q /var/www/omeka.zip -d /var/www/ \
 &&  rm /var/www/omeka.zip \
 &&  rm -rf /var/www/html \
-&&  mv /var/www/omeka-2.5 /var/www/html \
+&&  mv /var/www/omeka-2.6.1 /var/www/html \
 &&  chown -R www-data:www-data /var/www/html
 
 COPY ./db.ini /var/www/html/db.ini