1 files changed, 1 insertions, 1 deletions
diff --git a/Dockerfile b/Dockerfile
index c72302b..c60b39f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM alpine:edge
 
 RUN apk add python3 graphviz ttf-liberation bind bind-tools
-RUN apk add --virtual builddeps linux-headers python3-dev graphviz-dev gcc libc-dev openssl-dev swig && \
+RUN apk add --virtual builddeps linux-headers pip3 python3-dev graphviz-dev gcc libc-dev openssl-dev swig && \
 	pip3 install pygraphviz m2crypto dnspython && \
 	apk del builddeps