diff --git a/Dockerfile b/Dockerfile
index 4fa8e17ecb91405e8b494ff78fa236e9edd0aed3..f1731f60db78344897cab1ca6e863c8516508e44 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM netboxcommunity/netbox
 ENV NAPALM_USERNAME netbox-napalm
 
-RUN apk add git zlib alpine-sdk libxml2-dev libxslt-dev && pip3 install --upgrade napalm cffi napalm-dellos10
+RUN apk add git zlib alpine-sdk python3-dev libxml2-dev libxslt-dev && pip3 install --upgrade napalm cffi napalm-dellos10
 RUN pip3 install nextbox-ui-plugin
 RUN apk add py3-pillow
 WORKDIR /tmp