diff --git a/build-vm/boot.sh b/build-vm/boot.sh
index 96ad4a1..b3173e4 100755
--- a/build-vm/boot.sh
+++ b/build-vm/boot.sh
@@ -5,6 +5,7 @@ echo
 cd /home/security/workshop
 
 # Update repository
+git clean -f
 git pull origin master
 
 # Update Apache configuration
@@ -13,6 +14,9 @@ a2dissite 000-default
 a2ensite security-workshop
 service apache2 reload
 
+# Update permissions
+chmod o+w image/uploads
+
 # Update database
 echo "Resetting database"
 mysql -u root < build-vm/database.sql