diff --git a/jupyterhub/base-gpu/Dockerfile b/jupyterhub/base-gpu/Dockerfile
index f9c1d9d..b1998df 100644
--- a/jupyterhub/base-gpu/Dockerfile
+++ b/jupyterhub/base-gpu/Dockerfile
@@ -1,3 +1,5 @@
+# syntax=docker/dockerfile:1.3-labs
+
 FROM nvidia/cuda:12.2.2-cudnn8-runtime-ubuntu22.04
 
 ARG DEBIAN_FRONTEND=noninteractive
@@ -39,11 +41,6 @@ RUN mkdir -p /etc/apt/keyrings && \
     && \
     apt-get clean && rm -rf /var/lib/apt/lists/*
 
-# alias ls with eza
-RUN echo "alias ls='eza'" >> ~/.bashrc
-RUN echo "alias cat='batcat'" >> ~/.bashrc
-
-
 # Install Python 3.10
 RUN apt-get update --yes && \
     apt-get install --yes --no-install-recommends \    
@@ -89,4 +86,11 @@ RUN echo "auth requisite pam_deny.so" >> /etc/pam.d/su && \
 
 USER ${NB_UID}
 
+RUN chsh -s /bin/bash
+
+RUN <<EOF
+    echo "alias ls='eza'" >> ~/.bashrc
+    echo "alias cat='batcat'" >> ~/.bashrc
+EOF
+
 WORKDIR "${HOME}"
\ No newline at end of file