diff --git a/seeddms/lxcfile b/seeddms/lxcfile
index 8f4753e..1ffb41e 100644
--- a/seeddms/lxcfile
+++ b/seeddms/lxcfile
@@ -8,7 +8,7 @@ FIXLAYER /usr/bin/fix-apk
 
 RUN EOF
     # Install runtime dependencies
-    apk --no-cache add ghostscript imagemagick libreoffice-calc libreoffice-impress libreoffice-writer php7-fileinfo php7-iconv php7-pear php7-pdo_pgsql php7-simplexml php7-xml poppler-utils ttf-opensans
+    apk --no-cache add ghostscript imagemagick libreoffice-calc libreoffice-impress libreoffice-writer php7-fileinfo php7-iconv php7-openssl php7-pear php7-pdo_pgsql php7-simplexml php7-xml poppler-utils ttf-opensans
 
     # Install unoconv
     wget https://raw.githubusercontent.com/dagwieers/unoconv/master/unoconv -O /usr/bin/unoconv