diff --git a/Dockerfile b/Dockerfile
index c4bce97..f0dfd21 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 FROM alpine:3.12
-RUN apk update && apk add --no-cache bash git gcc openssh python3 py3-pip graphviz graphviz-dev
+RUN apk update && apk add --no-cache bash git gcc openssh python3 py3-pip graphviz graphviz-dev musl-dev
 
 COPY entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]