diff --git a/container/Dockerfile b/container/Dockerfile
index 7adc73b..bb6581c 100644
--- a/container/Dockerfile
+++ b/container/Dockerfile
@@ -6,6 +6,7 @@ RUN apk -U upgrade && \
     ghostscript \
     graphicsmagick \
     libreoffice \
+    openjdk8 \
     poppler-utils \
     python3 \
     py3-magic \