diff --git a/install-scripts/ubuntu.sh b/install-scripts/ubuntu.sh
index 9144c7b..c10beee 100755
--- a/install-scripts/ubuntu.sh
+++ b/install-scripts/ubuntu.sh
@@ -20,7 +20,7 @@ sudo apt install -y \
   python-setuptools
 
 curl -fsSL https://deb.nodesource.com/setup_16.x | sudo -E bash - &&\
-  sudo apt-get install -y nodejs nginx && npm install yarn -g
+  sudo apt-get install -y nodejs nginx && sudo npm install yarn -g
 
 # fun dependencies
 sudo apt install -y \