diff --git a/conf/settings.py b/conf/settings.py
index 8a56107..4346245 100644
--- a/conf/settings.py
+++ b/conf/settings.py
@@ -85,6 +85,8 @@ DATABASES = {
             # Change connection timeout in case you get MySQL gone away error:
             # "connect_timeout": 28800,
         },
+        # Persistent connections
+        "CONN_MAX_AGE": 0,
     }
 }
 
@@ -733,6 +735,8 @@ CRISPY_TEMPLATE_PACK = "bootstrap3"
 #     "weblate.checks.format.I18NextInterpolationCheck",
 #     "weblate.checks.format.ESTemplateLiteralsCheck",
 #     "weblate.checks.angularjs.AngularJSInterpolationCheck",
+#     "weblate.checks.icu.ICUMessageFormatCheck",
+#     "weblate.checks.icu.ICUSourceCheck",
 #     "weblate.checks.qt.QtFormatCheck",
 #     "weblate.checks.qt.QtPluralCheck",
 #     "weblate.checks.ruby.RubyFormatCheck",
diff --git a/manifest.json b/manifest.json
index c3c1165..061de82 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
 		"en": "Translation platform using Git and Python",
 		"fr": "Plateforme de traduction utilisant Git et Python" 
 	},
-	"version": "4.8~ynh1",
+	"version": "4.9~ynh1",
 	"url": "https://weblate.org",
 	"upstream": {
         "license": "AGPL-3.0",
diff --git a/scripts/_common.sh b/scripts/_common.sh
index bf0aa38..4421e61 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -12,7 +12,7 @@ pkg_dependencies="libxml2-dev libxslt-dev libfreetype6-dev libjpeg-dev libz-dev
 	libpq-dev libglib2.0-dev mailutils python-celery-common hub"
 
 # Weblate's version for PIP and settings file
-weblate_version="4.8"
+weblate_version="4.9"
 
 debian_maj_version=$(sed 's/\..*//' /etc/debian_version)