diff --git a/dev/Dockerfile b/dev/Dockerfile
index 6e3ec88..c5ffb6b 100644
--- a/dev/Dockerfile
+++ b/dev/Dockerfile
@@ -1,4 +1,4 @@
-FROM lscr.io/linuxserver/netbox:3.7.6
+FROM lscr.io/linuxserver/netbox:4.0.3
 
 RUN pip install -U \
     wheel \