diff --git a/ressources/post-install.sh b/ressources/post-install.sh
index c1d7d76..4294be3 100644
--- a/ressources/post-install.sh
+++ b/ressources/post-install.sh
@@ -14,7 +14,6 @@ BASEDIR=/var/www/html/plugins/teleinfo/ressources
 
 echo 5 > ${PROGRESS_FILE}
 sudo apt-get update
-sudo apt-get upgrade
 date
 #echo 10 > ${PROGRESS_FILE}
 #sudo apt remove -y python3-serial
@@ -54,4 +53,4 @@ date
 rm ${PROGRESS_FILE}
 echo "*************************************"
 echo "*  Installation des dépendances OK  *"
-echo "*************************************"
\ No newline at end of file
+echo "*************************************"