diff --git a/bin/efa b/bin/efa
index d7db6e789de6c6301e51902eba2fcb5a41794f47..fe5ab6e1960ab8eba3de64f2256f615995ea3032 100755
--- a/bin/efa
+++ b/bin/efa
@@ -3,6 +3,7 @@
 ## License: WTFPL <http://sam.zoy.org/wtfpl>
 use strict;
 use warnings;
+use 5.010;
 use encoding 'utf8';
 use Getopt::Long;
 use WWW::Mechanize;