diff --git a/Tutorial0_setup/requirements.txt b/Tutorial0_setup/requirements.txt
old mode 100755
new mode 100644
index bcf8941..268b504
--- a/Tutorial0_setup/requirements.txt
+++ b/Tutorial0_setup/requirements.txt
@@ -6,7 +6,7 @@ jupyter==1.0.0
 jupyter-client==5.2.4
 jupyter-console==6.0.0
 jupyter-core==4.4.0
-jupyterlab==0.35.4
+jupyterlab==1.2.21
 jupyterlab-server==0.2.0
 matplotlib==3.0.3
 nbconvert==5.4.1