diff --git a/scripts/install b/scripts/install
index 9481c2d..c8ee86f 100644
--- a/scripts/install
+++ b/scripts/install
@@ -129,12 +129,12 @@ ynh_script_progression --message="Building $app... (this will take some time and
 pushd "$final_path" || ynh_die
 
 	ynh_use_nodejs
-	ynh_exec_warn_less yarn install --non-interactive --silent
-	ynh_exec_warn_less yarn global add knex-migrator
-	ynh_exec_warn_less NODE_ENV=production knex-migrator init
-	ynh_exec_warn_less yarn global add grunt-cli ember-cli
-	ynh_exec_warn_less NODE_ENV=production grunt symlink
-	ynh_exec_warn_less NODE_ENV=production grunt init --force
+	yarn install --non-interactive --silent
+	yarn global add knex-migrator
+	NODE_ENV=production knex-migrator init
+	yarn global add grunt-cli ember-cli
+	NODE_ENV=production grunt symlink
+	NODE_ENV=production grunt init --force
 
 popd || ynh_die
 
diff --git a/scripts/upgrade b/scripts/upgrade
index a2af1bc..cf364d6 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -156,12 +156,12 @@ then
 	ynh_script_progression --message="Building $app... (this will take some time and resources!)"
 
 	pushd "$final_path" || ynh_die
-		ynh_exec_warn_less yarn install
-		ynh_exec_warn_less yarn global add knex-migrator
-		ynh_exec_warn_less NODE_ENV=production knex-migrator init
-		ynh_exec_warn_less yarn global add grunt
-		ynh_exec_warn_less NODE_ENV=production grunt symlink
-		ynh_exec_warn_less NODE_ENV=production grunt init --force
+		yarn install
+		yarn global add knex-migrator
+		NODE_ENV=production knex-migrator init
+		yarn global add grunt
+		NODE_ENV=production grunt symlink
+		NODE_ENV=production grunt init --force
 
 	popd || ynh_die
 fi