diff --git a/jupyter-docker/Dockerfile b/jupyter-docker/Dockerfile
index 5bd4b358b..4911baee1 100644
--- a/jupyter-docker/Dockerfile
+++ b/jupyter-docker/Dockerfile
@@ -1,5 +1,10 @@
 FROM jupyter/base-notebook:python-3.10
 
+# for offline builds, add ability for custom PIP repositories
+ARG PIP_INDEX
+ARG PIP_INDEX_URL
+ARG PIP_TRUSTED_HOST
+
 RUN pip3 install mythic==0.1.0
 
 WORKDIR /projects