Security update

Change-Id: Iafd1548885d295be1c3e4d88c4448db26868fa51
diff --git a/Makefile.PL b/Makefile.PL
index 96283cd..e89c412 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -17,7 +17,7 @@
   },
   LICENSE      => 'freebsd',
   PREREQ_PM => {
-    'Mojolicious' => '9.30',
+    'Mojolicious' => '9.31',
     'Mojolicious::Plugin::TagHelpers::Pagination' => 0.10,
     'Mojolicious::Plugin::TagHelpers::MailToChiffre' => 0.13,
     'Mojolicious::Plugin::ClosedRedirect' => 0.15,