diff --git a/scripts/install b/scripts/install
index a57870b..30e4d55 100755
--- a/scripts/install
+++ b/scripts/install
@@ -57,7 +57,7 @@ pushd $install_dir
 	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn install --network-timeout=30000
 
 	# fix issue "Type error: Cannot find module 'pulltorefreshjs' or its corresponding type declarations."
-	ynh_exec_as $app $ynh_node_load_PATH $ynh_npm install pulltorefreshjs
+	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn install pulltorefreshjs
 
 	ynh_script_progression --message="Building Yarn dev dependencies... This can be very long, be patient !" --weight=25
 	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn run build
diff --git a/scripts/upgrade b/scripts/upgrade
index a84d1eb..8e6a7a4 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -55,9 +55,9 @@ pushd $install_dir
 
 	ynh_script_progression --message="Fetching Yarn dev dependencies... This can be very long, be patient !" --weight=18
 	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn install --network-timeout=30000
-
+	
 	# fix issue "Type error: Cannot find module 'pulltorefreshjs' or its corresponding type declarations."
-	ynh_exec_as $app $ynh_node_load_PATH $ynh_npm install pulltorefreshjs
+	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn install pulltorefreshjs
 
 	ynh_script_progression --message="Building Yarn dev dependencies... This can be very long, be patient !" --weight=25
 	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn run build