diff --git a/data/docker-hub/DOCKER_JUPYTER-docker-stacks-master/internal/docker-stacks-webhook/conda_requirements.txt b/data/docker-hub/DOCKER_JUPYTER-docker-stacks-master/internal/docker-stacks-webhook/conda_requirements.txt
old mode 100755
new mode 100644
index 6e5c509..9cdad8e
--- a/data/docker-hub/DOCKER_JUPYTER-docker-stacks-master/internal/docker-stacks-webhook/conda_requirements.txt
+++ b/data/docker-hub/DOCKER_JUPYTER-docker-stacks-master/internal/docker-stacks-webhook/conda_requirements.txt
@@ -3,4 +3,4 @@
 # NOTE: jupyter_kernel_gateway uses the notebook package. We get a
 # speed up if we pre-install the notebook package using conda since
 # we'll get prebuilt binaries for all its dependencies like pyzmq.
-notebook==4.1
+notebook==6.1.5