diff --git a/Dockerfile b/Dockerfile
index 63f58ea..492e16e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -40,6 +40,7 @@ RUN apk update && apk add --update --no-cache --progress \
         zlib-dev \
         pcre-dev \
         zlib-dev jpeg-dev libpng-dev freetype-dev \
+        python3-lxml \
 		python3-dev \
 
 	&& python3 -m ensurepip \