diff --git a/Dockerfile b/Dockerfile
index 793ffad..0a358dd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ ARG LAB_IMAGE=quay.io/jupyter/scipy-notebook:lab-4.0.12
 # ARG NB_GID="100"
 FROM ${LAB_IMAGE}
 # kaniko issue https://github.com/GoogleContainerTools/kaniko/issues/1087
-SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+SHELL ["/bin/sh", "-o", "pipefail", "-c"]
 USER root
 RUN apt-get update --yes 
 USER ${NB_UID}