diff --git a/check_process b/check_process
index 8b4cff8..afc9dec 100644
--- a/check_process
+++ b/check_process
@@ -12,7 +12,7 @@
 		setup_private=0
 		setup_public=0
 		upgrade=1
-		upgrade=1	from_commit=1cdb9ea1619c6acaaa90bae88b5c4bed5084a2a7
+		upgrade=1	from_commit=9c57c2f78f3da979d587d708eb9379ffaa41bcfa
 		backup_restore=1
 		multi_instance=1
 		incorrect_path=1
@@ -24,6 +24,6 @@
 Email=
 Notification=none
 ;;; Upgrade options
-	; commit=1cdb9ea1619c6acaaa90bae88b5c4bed5084a2a7
-		name= Fix Debian Stretch dependencies by installing php-apcu, php-mbstring … 
+	; commit=9c57c2f78f3da979d587d708eb9379ffaa41bcfa
+		name=Do not use too much process for php (#247)
 		manifest_arg=domain=DOMAIN&path=PATH&admin=USER&user_home=1&
diff --git a/scripts/_ynh_add_fpm_config b/scripts/_ynh_add_fpm_config
index 9d4dacf..cfe2232 100644
--- a/scripts/_ynh_add_fpm_config
+++ b/scripts/_ynh_add_fpm_config
@@ -125,4 +125,22 @@ ynh_add_fpm_config () {
 		ynh_store_file_checksum "$finalphpini"
 	fi
 	ynh_systemd_action --service_name=$fpm_service --action=reload
+	
+	# Clean other php version config files for this app. Used for migration purpose.
+	if [ -e "/etc/php5/fpm/pool.d/$app.conf" ]
+	then
+		ynh_secure_remove --file="/etc/php5/fpm/pool.d/$app.conf"
+		ynh_systemd_action --service_name=php5-fpm --action=reload
+	fi
+	for i in `seq 0 4`
+	do
+		if [ "$phpversion" != "7.$i" ]
+		then
+			if [ -e "/etc/php/7.$i/fpm/pool.d/$app.conf" ]
+			then
+				ynh_secure_remove --file="/etc/php/7.$i/fpm/pool.d/$app.conf"
+				ynh_systemd_action --service_name=php7.$i-fpm --action=reload
+			fi
+		fi
+	done
 }
diff --git a/scripts/upgrade b/scripts/upgrade
index cac237d..47d9a0c 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -132,6 +132,16 @@ fi
 # Normalize the URL path syntax
 path_url=$(ynh_normalize_url_path --path_url=$path_url)
 
+#=================================================
+# UPGRADE DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Upgrading dependencies..." --weight=7
+
+ynh_install_app_dependencies $pkg_dependencies
+
+ynh_remove_php
+ynh_install_php --phpversion="$php_version" --package="$extra_pkg_dependencies"
+
 #=================================================
 # STANDARD UPGRADE STEPS
 #=================================================
@@ -178,16 +188,6 @@ if [ -f /etc/php/$php_version/fpm/conf.d/20-$app.ini ]; then
 	ynh_secure_remove --file=/etc/php/$php_version/fpm/conf.d/20-$app.ini
 fi
 
-#=================================================
-# UPGRADE DEPENDENCIES
-#=================================================
-ynh_script_progression --message="Upgrading dependencies..." --weight=7
-
-ynh_install_app_dependencies $pkg_dependencies
-
-ynh_remove_php
-ynh_install_php --phpversion="$php_version" --package="$extra_pkg_dependencies"
-
 #=================================================
 # SPECIFIC UPGRADE
 #=================================================
diff --git a/scripts/upgrade.d/upgrade.15.sh b/scripts/upgrade.d/upgrade.15.sh
index 919c6ad..a8c2c1c 100644
--- a/scripts/upgrade.d/upgrade.15.sh
+++ b/scripts/upgrade.d/upgrade.15.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Last available nextcloud version
-next_version="15.0.11"
+next_version="16.0.0"
 
 # Nextcloud tarball checksum sha256
-nextcloud_source_sha256="59cdde8e7a4a15606efc246e37adf6401b0b4a60f33289be8725d675b9c2ae26"
+nextcloud_source_sha256="4532f7028b1d9bf060f75ac4fbbde52a59ecd9c9155f3178a038d3cf3609402e"
diff --git a/scripts/upgrade.d/upgrade.16.sh b/scripts/upgrade.d/upgrade.16.sh
index ec2b0c6..cb0d88a 100755
--- a/scripts/upgrade.d/upgrade.16.sh
+++ b/scripts/upgrade.d/upgrade.16.sh
@@ -1,16 +1,7 @@
 #!/bin/bash
 
 # Last available nextcloud version
-next_version="16.0.5"
+next_version="17.0.0"
 
 # Nextcloud tarball checksum sha256
-nextcloud_source_sha256="8709c64fa776fd731c8e5f1ab25d592a2e690e5e18a81601cccf363795fae551"
-
-# This function will only be executed upon applying the last upgrade referenced above
-last_upgrade_operations () {
-  # Patch nextcloud files only for the last version
-  cp -a ../sources/patches_last_version/* ../sources/patches
-
-  # Execute post-upgrade operations later on
-  (cd /tmp ; at now + 10 minutes <<< "(cd $final_path ; sudo -u $app php occ db:add-missing-indices ; sudo -u $app php occ db:convert-filecache-bigint -n) > /tmp/${app}_maintenance.log")
-}
+nextcloud_source_sha256="6081421b33ecdb3130b2bfb2293a3f4045aeb0b471ee570e675de3d931a142a6"
diff --git a/scripts/upgrade.d/upgrade.17.sh b/scripts/upgrade.d/upgrade.17.sh
index 0cf5c28..35200da 100755
--- a/scripts/upgrade.d/upgrade.17.sh
+++ b/scripts/upgrade.d/upgrade.17.sh
@@ -1,16 +1,7 @@
 #!/bin/bash
 
 # Last available nextcloud version
-next_version="17.0.0"
+next_version="18.0.0"
 
 # Nextcloud tarball checksum sha256
-nextcloud_source_sha256="6081421b33ecdb3130b2bfb2293a3f4045aeb0b471ee570e675de3d931a142a6"
-
-# This function will only be executed upon applying the last upgrade referenced above
-last_upgrade_operations () {
-  # Patch nextcloud files only for the last version
-  cp -a ../sources/patches_last_version/* ../sources/patches
-
-  # Execute post-upgrade operations later on
-  (cd /tmp ; at now + 10 minutes <<< "(cd $final_path ; sudo -u $app php occ db:add-missing-indices ; sudo -u $app php occ db:convert-filecache-bigint -n) > /tmp/${app}_maintenance.log")
-}
+nextcloud_source_sha256="194095a5586d84040bc455f77b8aa6c80f9a6a6dd713c9aebdad046713d4267b"