diff --git a/Dockerfile b/Dockerfile
index 796f2f8..dec0a91 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -48,6 +48,11 @@ RUN apt-get -y install \
     latex-cjk-chinese-arphic-gbsn00lp latex-cjk-chinese-arphic-gkai00mp \
     fonts-symbola
 
+# Install 'rsvg-convert' for SVG -> PDF conversion
+# using Sphinx extension sphinxcontrib.rsvgconverter, see
+# https://github.com/missinglinkelectronics/sphinxcontrib-svg2pdfconverter
+RUN apt-get -y install librsvg2-bin
+
 # Install plantuml
 RUN apt-get -y install plantuml