2 files changed, 1 insertions, 3 deletions
diff --git a/challenge-205/matthias-muth/ch-1-pre-5.25.1.pl b/challenge-205/matthias-muth/ch-1-pre-5.25.1.pl
index 8256956f23..47750f89ff 100755
--- a/challenge-205/matthias-muth/ch-1-pre-5.25.1.pl
+++ b/challenge-205/matthias-muth/ch-1-pre-5.25.1.pl
@@ -1,6 +1,5 @@
 #!/usr/bin/env perl
 
-use v5.10;
 use strict;
 use warnings;
 
diff --git a/challenge-205/matthias-muth/ch-1.pl b/challenge-205/matthias-muth/ch-1.pl
index 3f689d8773..cb8c9587c4 100755
--- a/challenge-205/matthias-muth/ch-1.pl
+++ b/challenge-205/matthias-muth/ch-1.pl
@@ -1,10 +1,9 @@
 #!/usr/bin/env perl
 
-use v5.25.1;
 use strict;
 use warnings;
 
-use List::Util qw( uniq );
+use List::Util 1.45 qw( uniq );
 
 sub third_highest {
     my @a = uniq reverse sort @_;