diff --git a/scripts/install b/scripts/install
index b533def..882c3ff 100755
--- a/scripts/install
+++ b/scripts/install
@@ -190,15 +190,15 @@ ynh_add_nginx_config
 pushd "$final_path"
 	ynh_use_nodejs
 	ynh_script_progression --message="Fetching Yarn dev dependencies... This can be very long, be patient !" --weight=18
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install --no-optional --frozen-lockfile
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install --no-optional --frozen-lockfile 2>&1
 	ynh_script_progression --message="Cleaning cache... " --weight=3
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn cache clean
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn cache clean 2>&1
 	ynh_script_progression --message="Building Yarn dev dependencies... This can be very long, be patient !" --weight=18
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn build
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn build 2>&1
 	ynh_script_progression --message="Fetching Yarn production dependencies... This can be very long, be patient !" --weight=18
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install --production=true --frozen-lockfile
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install --production=true --frozen-lockfile 2>&1
 	ynh_script_progression --message="Cleaning cache... " --weight=3
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn cache clean
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn cache clean 2>&1
 popd
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 2f9759a..c52f12d 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -115,15 +115,15 @@ ynh_script_progression --message="Building Yarn dependencies... This can be very
 pushd "$final_path"
 	ynh_use_nodejs
 	ynh_script_progression --message="Fetching Yarn dev dependencies... This can be very long, be patient !" --time --weight=5
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install --no-optional --frozen-lockfile
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install --no-optional --frozen-lockfile 2>&1
 	ynh_script_progression --message="Cleaning cache... " --time --weight=1
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn cache clean
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn cache clean 2>&1
 	ynh_script_progression --message="Building Yarn dev dependencies... This can be very long, be patient !" --time --weight=5
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn build
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn build 2>&1
 	ynh_script_progression --message="Fetching Yarn production dependencies... This can be very long, be patient !" --time --weight=5
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install --production=true --frozen-lockfile
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install --production=true --frozen-lockfile 2>&1
 	ynh_script_progression --message="Cleaning cache... " --time --weight=1
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn cache clean
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn cache clean 2>&1
 popd
 
 #=================================================