diff --git a/(1)TutorialPython_IPYTHON/requirements.txt b/(1)TutorialPython_IPYTHON/requirements.txt
index 1f85101..6061a7e 100644
--- a/(1)TutorialPython_IPYTHON/requirements.txt
+++ b/(1)TutorialPython_IPYTHON/requirements.txt
@@ -6,7 +6,7 @@ astor==0.8.0
 astroid==2.2.5
 atomicwrites==1.3.0
 attrs==19.1.0
-Babel==2.7.0
+Babel==2.9.1
 backcall==0.1.0
 bleach==3.1.0
 bokeh==1.2.0