diff --git a/ct/outline.sh b/ct/outline.sh
index a775f8b3d..896af3c81 100644
--- a/ct/outline.sh
+++ b/ct/outline.sh
@@ -28,7 +28,7 @@ function update_script() {
     exit
   fi
 
-  NODE_VERSION="22" NODE_MODULE="yarn@latest" setup_nodejs
+  NODE_VERSION="22" setup_nodejs
 
   if check_for_gh_release "outline" "outline/outline"; then
     msg_info "Stopping Services"
@@ -46,7 +46,8 @@ function update_script() {
     mv /opt/.env /opt/outline
     export NODE_ENV=development
     export NODE_OPTIONS="--max-old-space-size=3584"
-    $STD yarn install --frozen-lockfile
+    $STD corepack enable
+    $STD yarn install --immutable
     export NODE_ENV=production
     $STD yarn build
     msg_ok "Updated ${APP}"
diff --git a/install/outline-install.sh b/install/outline-install.sh
index 1fc4ba0a1..71168df00 100644
--- a/install/outline-install.sh
+++ b/install/outline-install.sh
@@ -20,7 +20,7 @@ $STD apt install -y \
   redis
 msg_ok "Installed Dependencies"
 
-NODE_VERSION="22" NODE_MODULE="yarn@latest" setup_nodejs
+NODE_VERSION="22" setup_nodejs
 PG_VERSION="16" setup_postgresql
 PG_DB_NAME="outline" PG_DB_USER="outline" setup_postgresql_db
 fetch_and_deploy_gh_release "outline" "outline/outline" "tarball"
@@ -38,7 +38,8 @@ sed -i 's/redis:6379/localhost:6379/g' /opt/outline/.env
 sed -i "5s#URL=#URL=http://${LOCAL_IP}#g" /opt/outline/.env
 sed -i 's/FORCE_HTTPS=true/FORCE_HTTPS=false/g' /opt/outline/.env
 export NODE_OPTIONS="--max-old-space-size=3584"
-$STD yarn install --frozen-lockfile
+$STD corepack enable
+$STD yarn install --immutable
 export NODE_ENV=production
 sed -i 's/NODE_ENV=development/NODE_ENV=production/g' /opt/outline/.env
 $STD yarn build