diff --git a/Dockerfile b/Dockerfile
index a3e2506..daf92e7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,8 @@ FROM python:3-slim
 
 RUN apt-get update && \
   apt-get install -y \
-     ruby && \
+     ruby \
+     npm && \
   apt-get clean
 
 # Install xml2rfc
@@ -13,3 +14,5 @@ RUN pip install xml2rfc
 # Install kramdown-rfc2629
 RUN gem install kramdown-rfc2629
 
+# Install aa2svg
+RUN npm install -g aasvg