diff --git a/conf/app.src b/conf/app.src
index 0ae83db..c98a8ec 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://download.phpbb.com/pub/release/3.3/3.3.5/phpBB-3.3.5.zip
-SOURCE_SUM=983d60881fab3139bbcbe9182dcaaa1d2e9c6fb80fef682a0b28785ee22d05dd
+SOURCE_URL=https://download.phpbb.com/pub/release/3.3/3.3.8/phpBB-3.3.8.zip
+SOURCE_SUM=efc7a43306a39b5ff1137c44462aca80c21612e0962a0f8048e15fbcc28ec76c
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=true
diff --git a/manifest.json b/manifest.json
index 9610e7f..8797b35 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Forum software that is easy to use, powerful, and highly customisable",
         "fr": "Forum facile à utiliser, puissant et hautement personnalisable"
     },
-    "version": "3.3.5~ynh1",
+    "version": "3.3.8~ynh1",
     "url": "http://www.phpbb.com/",
     "upstream": {
         "license": "GPL-2.0-only",
@@ -26,7 +26,7 @@
     "multi_instance": true,
     "services": [
         "nginx",
-        "php7.3-fpm",
+        "php7.4-fpm",
         "mysql"
     ],
     "arguments": {
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 4b1e250..209fdda 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -4,7 +4,7 @@
 # COMMON VARIABLES
 #=================================================
 
-YNH_PHP_VERSION="7.3"
+YNH_PHP_VERSION="7.4"
 
 # dependencies used by the app
 pkg_dependencies="php${YNH_PHP_VERSION}-mbstring php${YNH_PHP_VERSION}-fpm php${YNH_PHP_VERSION}-common php${YNH_PHP_VERSION}-gmp php${YNH_PHP_VERSION}-curl php${YNH_PHP_VERSION}-intl php${YNH_PHP_VERSION}-xmlrpc php${YNH_PHP_VERSION}-mysql php${YNH_PHP_VERSION}-gd php${YNH_PHP_VERSION}-xml php${YNH_PHP_VERSION}-cli php${YNH_PHP_VERSION}-zip php${YNH_PHP_VERSION}-bcmath"
diff --git a/scripts/install b/scripts/install
index a932501..1c7bb82 100644
--- a/scripts/install
+++ b/scripts/install
@@ -155,6 +155,8 @@ ynh_script_progression --message="Configuring permissions..." --weight=1
 # Make app public if necessary
 if [ $is_public -eq 1 ]
 then
+	# Everyone can access the app.
+	# The "main" permission is automatically created before the install script.
 	ynh_permission_update --permission="main" --add="visitors"
 fi