diff --git a/test/perl/TestClient.pl b/test/perl/TestClient.pl
index 483c964..6f3cbc9 100755
--- a/test/perl/TestClient.pl
+++ b/test/perl/TestClient.pl
@@ -19,7 +19,7 @@
 # under the License.
 #
 
-require 5.6.0;
+use 5.10.0;
 use strict;
 use warnings;
 use Data::Dumper;
diff --git a/test/perl/TestServer.pl b/test/perl/TestServer.pl
index e2835f4..c97067e 100644
--- a/test/perl/TestServer.pl
+++ b/test/perl/TestServer.pl
@@ -19,7 +19,7 @@
 # under the License.
 #
 
-require 5.6.0;
+use 5.10.0;
 use strict;
 use warnings;
 use Data::Dumper;