diff -rupN Hash-DefHash-0.071/lib/Hash/DefHash.pm Hash-DefHash-0.071-new/lib/Hash/DefHash.pm
--- Hash-DefHash-0.071/lib/Hash/DefHash.pm	2020-01-04 01:09:19.000000000 +0100
+++ Hash-DefHash-0.071-new/lib/Hash/DefHash.pm	2020-01-09 16:35:26.072251567 +0100
@@ -14,7 +14,7 @@ use warnings;
 use Scalar::Util qw(blessed);
 use String::Trim::More qw(trim_blank_lines);
 
-use Exporter qw(import);
+use Exporter 5.57 qw(import);
 our @EXPORT = qw(defhash);
 
 our $re_prop = qr/\A[A-Za-z_][A-Za-z0-9_]*\z/;