diff --git a/Dockerfile b/Dockerfile
index d35746703..85724ca11 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM alpine:3.5
 
 ENV BUILD_PACKAGES postgresql-dev graphviz-dev graphviz build-base git pkgconfig \
 python3-dev libxml2-dev jpeg-dev libressl-dev libffi-dev libxslt-dev nodejs py3-lxml \
-py3-magic postgresql-client vim
+py3-magic postgresql-client poppler-utils vim
 
 RUN apk add --no-cache python3 nginx && \
     python3 -m ensurepip && \