diff --git a/Dockerfile b/Dockerfile
index 88992d0..eb130bb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -30,17 +30,16 @@ RUN apk update && apk add --update --no-cache --progress \
     cyrus-sasl-dev \
     jpeg libpng freetype \
 	bash bash-completion \
-	py-lxml \
 	gettext-dev \
 
 	&& apk add --no-cache --virtual=.build-dependencies \
 		musl-dev \
         build-base \
         ncurses-dev \
-        libxslt-dev \
-        zlib-dev \
         pcre-dev \
         zlib-dev jpeg-dev libpng-dev freetype-dev \
+        tiff-dev lcms2-dev libwebp-dev tcl-dev tk-dev \
+        libxml2-dev libxslt-dev libffi-dev \
 		python3-dev \
 
 	&& python3 -m ensurepip \