diff --git a/Dockerfile b/Dockerfile
index 7aa1bfd..2729076 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,9 +9,7 @@ COPY . /app
 # groupadd --system - create a system account
 # useradd --system - create a system account
 # useradd --gid - name or ID of the primary group of the new account
-# usermod --append - append the user to the supplemental GROUPS mentioned by the -G/--groups option without removing the user from other groups
-# usermod --groups - new list of supplementary GROUPS
-RUN groupadd --system json-stream && useradd --system --gid json-stream --uid 1000 json-stream && usermod --append --groups users json-stream
+RUN useradd --system --gid users --uid 1000 json-stream
 
 ENV TH2_CFG_DIR="/app/var/th2/config/"
 ENV HOME="/home/json-stream"
@@ -41,6 +39,7 @@ ENV PYTHONPATH="${PYTHONPATH}:${PYTHON_LOCAL_LIB_PATH}:${PYTHON_SHARED_LIB_PATH}
 ENV PIP_CONFIG_FILE="${HOME}/.pip/pip.conf"
 
 RUN mkdir -p "${PYTHON_SHARED_LIB_PATH}"
+RUN echo 'umask 0007' >> "${HOME}/.bashrc"
 
 ENTRYPOINT ["python", "/app/server.py"]
 CMD ["/var/th2/config/custom.json"]
\ No newline at end of file
diff --git a/README.md b/README.md
index 06905dd..89edeb2 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,20 @@ You can put required files for you jupyter notebooks into `local-run/with-jupyte
 Or you can mount own folder by changing value of `USER_DATA_DIR` environment variable in the `local-run/with-jupyter-notebook/.evn` file.<br>
 Or change the `local-run/with-jupyter-notebook/compose.yml` file. Please note you should mount the same dictionary by the same path to `jupyter_notebook` and `json_stream_provider` services.
 
+### provide permission for `local-run/with-jupyter-notebook/user_data` folder
+`jupyter-notebook` and `json-stream-provider` use user from default linux `users` group. 
+It means that:
+* `user_data` folder internal folder should have `rwx` permission for `users` group.
+* files in `user_data` folder should have `rw` permission for `users` group.
+
+Perhaps you will need sudo permission for the next commands
+
+```shell
+cd local-run/with-jupyter-notebook
+chgrp -R users user_data/
+chmod -R g=u user_data/
+```
+
 #### start command
 ```shell
 cd local-run/with-jupyter-notebook
@@ -107,6 +121,7 @@ docker compose build
 
 ### 0.0.5
 
+* added `umask 0007` to `~/.bashrc` file to provide rw file access for `users` group 
 * added `/file` request for loading content of single jsonl file
 * removed ability to get any file from machine via `/file` REST APIs
 * added sorting on requests `/files/notebooks` and `/files/results`
diff --git a/local-run/with-jupyter-notebook/jupyter-notebook/Dockerfile b/local-run/with-jupyter-notebook/jupyter-notebook/Dockerfile
index 592efcd..6ac4f50 100644
--- a/local-run/with-jupyter-notebook/jupyter-notebook/Dockerfile
+++ b/local-run/with-jupyter-notebook/jupyter-notebook/Dockerfile
@@ -3,7 +3,8 @@ FROM jupyter/datascience-notebook:python-3.9
 RUN echo "c.ServerApp.base_url = '/jupyter/'" >> /etc/jupyter/jupyter_server_config.py
 
 ENV PYTHON_SHARED_LIB_PATH="${HOME}/python/lib"
+ENV PYTHONPATH="${PYTHONPATH}:${PYTHON_SHARED_LIB_PATH}"
+ENV PIP_TARGET="${PYTHON_SHARED_LIB_PATH}"
 
 RUN mkdir -p "${PYTHON_SHARED_LIB_PATH}"
-ENV PYTHONPATH="${PYTHONPATH}:${PYTHON_SHARED_LIB_PATH}"
-ENV PIP_TARGET="${PYTHON_SHARED_LIB_PATH}"
\ No newline at end of file
+RUN echo 'umask 0007' >> "${HOME}/.bashrc"
\ No newline at end of file
diff --git a/local-run/with-jupyter-notebook/user_data/.gitignore b/local-run/with-jupyter-notebook/user_data/.gitignore
deleted file mode 100644
index f59ec20..0000000
--- a/local-run/with-jupyter-notebook/user_data/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-*
\ No newline at end of file