diff --git a/requirements.txt b/requirements.txt
index c57f4d0..63e3d73 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,69 +1,69 @@
-ansiwrap==0.8.4
-attrs==19.1.0
-backcall==0.1.0
-bleach==3.1.0
-certifi==2019.6.16
-chardet==3.0.4
-Click==7.0
-colorama==0.4.1
-cycler==0.10.0
-decorator==4.4.0
-defusedxml==0.6.0
-entrypoints==0.3
-future==0.17.1
-idna==2.8
-importlib-resources==1.0.2
-ipykernel==5.1.1
-ipython==7.7.0
-ipython-genutils==0.2.0
-ipywidgets==7.5.1
-jedi==0.14.1
-Jinja2==2.10.1
-jsonschema==3.0.2
-jupyter==1.0.0
-jupyter-client==5.3.1
-jupyter-console==6.0.0
-jupyter-core==4.5.0
-jupytex==0.0.3
-kiwisolver==1.1.0
-MarkupSafe==1.1.1
-matplotlib==3.1.1
-mistune==0.8.4
-nbconvert==5.5.0
-nbformat==4.4.0
-notebook==6.0.0
-numpy==1.17.0
-pandas==0.25.0
-pandocfilters==1.4.2
-papermill==1.0.1
-parso==0.5.1
-pexpect==4.7.0
-pickleshare==0.7.5
-prometheus-client==0.7.1
-prompt-toolkit==2.0.9
-ptyprocess==0.6.0
-Pygments==2.4.2
-pyparsing==2.4.2
-pyrsistent==0.15.4
-python-dateutil==2.8.0
-pytz==2019.2
-PyYAML==5.1.2
-pyzmq==18.0.2
-qtconsole==4.5.2
+ansiwrap
+attrs
+backcall
+bleach
+certifi
+chardet
+Click
+colorama
+cycler
+decorator
+defusedxml
+entrypoints
+future
+idna
+importlib-resources
+ipykernel
+ipython
+ipython-genutils
+ipywidgets
+jedi
+Jinja2
+jsonschema
+jupyter
+jupyter-client
+jupyter-console
+jupyter-core
+jupytex
+kiwisolver
+MarkupSafe
+matplotlib
+mistune
+nbconvert
+nbformat
+notebook
+numpy
+pandas
+pandocfilters
+papermill
+parso
+pexpect
+pickleshare
+prometheus-client
+prompt-toolkit
+ptyprocess
+Pygments
+pyparsing
+pyrsistent
+python-dateutil
+pytz
+PyYAML
+pyzmq
+qtconsole
 -e git+git_opytex:/lafrite/recopytex.git@e9a8310f151ead60434ae944d726a2fd22b23d06#egg=Recopytex
-requests==2.22.0
-scipy==1.3.0
-seaborn==0.9.0
-Send2Trash==1.5.0
-six==1.12.0
-tenacity==5.0.4
-terminado==0.8.2
-testpath==0.4.2
-textwrap3==0.9.2
-tornado==6.0.3
-tqdm==4.32.2
-traitlets==4.3.2
-urllib3==1.25.3
-wcwidth==0.1.7
-webencodings==0.5.1
-widgetsnbextension==3.5.1
+requests
+scipy
+seaborn
+Send2Trash
+six
+tenacity
+terminado
+testpath
+textwrap3
+tornado
+tqdm
+traitlets
+urllib3
+wcwidth
+webencodings
+widgetsnbextension