diff --git a/docker_devbox/dev.Dockerfile b/docker_devbox/dev.Dockerfile
index 9d3bfe6..43a30ed 100644
--- a/docker_devbox/dev.Dockerfile
+++ b/docker_devbox/dev.Dockerfile
@@ -20,6 +20,7 @@ ARG ARG_KEEP_NODEJS=true
 COPY work /opt/utils/
 
 RUN set -eux && source /opt/utils/script-utils.sh \
+ && chmod +x /opt/utils/*.sh \
  # ----------------------------- Setup Jupyter: Basic Configurations and Extensions
  && mkdir -pv /opt/conda/etc/jupyter/ \
  && mv /opt/utils/etc_jupyter/* /opt/conda/etc/jupyter/ && rm -rf /opt/utils/etc_jupyter \
diff --git a/docker_devbox/hub.Dockerfile b/docker_devbox/hub.Dockerfile
index 9488a1e..9057e6b 100644
--- a/docker_devbox/hub.Dockerfile
+++ b/docker_devbox/hub.Dockerfile
@@ -14,6 +14,7 @@ ARG ARG_KEEP_NODEJS=true
 COPY work /opt/utils/
 
 RUN set -eux \
+ && chmod +x /opt/utils/*.sh \
  # Setup JupyterHub
  && source /opt/utils/script-devbox-jupyter.sh \
  && mv /opt/utils/start-*.sh /usr/local/bin/ && chmod +x /usr/local/bin/start-*.sh \