diff --git a/lib/NGCP/InterceptSchema.pm b/lib/NGCP/InterceptSchema.pm
index e11a2a7a..e760eb46 100644
--- a/lib/NGCP/InterceptSchema.pm
+++ b/lib/NGCP/InterceptSchema.pm
@@ -3,7 +3,7 @@ package NGCP::InterceptSchema;
 use warnings;
 use strict;
 
-use base 'NGCP::Schema';
+use parent 'NGCP::Schema';
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema.pm b/lib/NGCP/Schema.pm
index 73dc2175..33047ea1 100644
--- a/lib/NGCP/Schema.pm
+++ b/lib/NGCP/Schema.pm
@@ -4,7 +4,7 @@ use Sipwise::Base '-skip'=>['TryCatch'];
 use NGCP::Schema::Config qw();
 use Regexp::Common qw(net);
 use Regexp::IPv6 qw($IPv6_re);
-use base 'DBIx::Class::Schema';
+use parent 'DBIx::Class::Schema';
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/InflateColumn/DateTime/EpochMicro.pm b/lib/NGCP/Schema/InflateColumn/DateTime/EpochMicro.pm
index 6433b7d7..daf2d65e 100644
--- a/lib/NGCP/Schema/InflateColumn/DateTime/EpochMicro.pm
+++ b/lib/NGCP/Schema/InflateColumn/DateTime/EpochMicro.pm
@@ -2,7 +2,7 @@ package NGCP::Schema::InflateColumn::DateTime::EpochMicro;
 use Sipwise::Base '-skip'=>['TryCatch'];
 use DateTime qw();
 
-use base 'DBIx::Class';
+use parent 'DBIx::Class';
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/InflateColumn/DateTime/EpochMilli.pm b/lib/NGCP/Schema/InflateColumn/DateTime/EpochMilli.pm
index 4a6169f8..1724e229 100644
--- a/lib/NGCP/Schema/InflateColumn/DateTime/EpochMilli.pm
+++ b/lib/NGCP/Schema/InflateColumn/DateTime/EpochMilli.pm
@@ -2,7 +2,7 @@ package NGCP::Schema::InflateColumn::DateTime::EpochMilli;
 use Sipwise::Base '-skip'=>['TryCatch'];
 use DateTime qw();
 
-use base 'DBIx::Class';
+use parent 'DBIx::Class';
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/InflateColumn/DateTime/EpochString.pm b/lib/NGCP/Schema/InflateColumn/DateTime/EpochString.pm
index bf022150..841327b3 100644
--- a/lib/NGCP/Schema/InflateColumn/DateTime/EpochString.pm
+++ b/lib/NGCP/Schema/InflateColumn/DateTime/EpochString.pm
@@ -2,7 +2,7 @@ package NGCP::Schema::InflateColumn::DateTime::EpochString;
 use Sipwise::Base '-skip'=>['TryCatch'];
 use DateTime qw();
 
-use base 'DBIx::Class';
+use parent 'DBIx::Class';
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/Result/billing_mappings_actual.pm b/lib/NGCP/Schema/Result/billing_mappings_actual.pm
index 17f4a350..73a80d0a 100644
--- a/lib/NGCP/Schema/Result/billing_mappings_actual.pm
+++ b/lib/NGCP/Schema/Result/billing_mappings_actual.pm
@@ -1,6 +1,6 @@
 package NGCP::Schema::Result::billing_mappings_actual;
 use Scalar::Util qw(blessed);
-use base qw/DBIx::Class::Core/;
+use parent qw/DBIx::Class::Core/;
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/Result/contract_fraud_events.pm b/lib/NGCP/Schema/Result/contract_fraud_events.pm
index 1324c40f..733ad3f5 100644
--- a/lib/NGCP/Schema/Result/contract_fraud_events.pm
+++ b/lib/NGCP/Schema/Result/contract_fraud_events.pm
@@ -1,6 +1,6 @@
 package NGCP::Schema::Result::contract_fraud_events;
 use Scalar::Util qw(blessed);
-use base qw/DBIx::Class::Core/;
+use parent qw/DBIx::Class::Core/;
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/Result/contract_timezone.pm b/lib/NGCP/Schema/Result/contract_timezone.pm
index 8403e2c4..37a0d52a 100644
--- a/lib/NGCP/Schema/Result/contract_timezone.pm
+++ b/lib/NGCP/Schema/Result/contract_timezone.pm
@@ -1,6 +1,6 @@
 package NGCP::Schema::Result::contract_timezone;
 use Scalar::Util qw(blessed);
-use base qw/DBIx::Class::Core/;
+use parent qw/DBIx::Class::Core/;
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/Result/lnp_numbers_actual.pm b/lib/NGCP/Schema/Result/lnp_numbers_actual.pm
index 3b989ff5..a4ec4161 100644
--- a/lib/NGCP/Schema/Result/lnp_numbers_actual.pm
+++ b/lib/NGCP/Schema/Result/lnp_numbers_actual.pm
@@ -1,6 +1,6 @@
 package NGCP::Schema::Result::lnp_numbers_actual;
 use Scalar::Util qw(blessed);
-use base qw/DBIx::Class::Core/;
+use parent qw/DBIx::Class::Core/;
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/Result/messages_custom.pm b/lib/NGCP/Schema/Result/messages_custom.pm
index 63d45e0c..d28dfb08 100644
--- a/lib/NGCP/Schema/Result/messages_custom.pm
+++ b/lib/NGCP/Schema/Result/messages_custom.pm
@@ -1,6 +1,6 @@
 package NGCP::Schema::Result::messages_custom;
 use Scalar::Util qw(blessed);
-use base qw/DBIx::Class::Core/;
+use parent qw/DBIx::Class::Core/;
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/Result/reseller_timezone.pm b/lib/NGCP/Schema/Result/reseller_timezone.pm
index c5f34539..efec1b16 100644
--- a/lib/NGCP/Schema/Result/reseller_timezone.pm
+++ b/lib/NGCP/Schema/Result/reseller_timezone.pm
@@ -1,6 +1,6 @@
 package NGCP::Schema::Result::reseller_timezone;
 use Scalar::Util qw(blessed);
-use base qw/DBIx::Class::Core/;
+use parent qw/DBIx::Class::Core/;
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/Result/timezones.pm b/lib/NGCP/Schema/Result/timezones.pm
index 7fa32d9f..4bff9134 100644
--- a/lib/NGCP/Schema/Result/timezones.pm
+++ b/lib/NGCP/Schema/Result/timezones.pm
@@ -1,6 +1,6 @@
 package NGCP::Schema::Result::timezones;
 use Scalar::Util qw(blessed);
-use base qw/DBIx::Class::Core/;
+use parent qw/DBIx::Class::Core/;
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/Result/voip_subscriber_timezone.pm b/lib/NGCP/Schema/Result/voip_subscriber_timezone.pm
index 02f21c84..80d2da17 100644
--- a/lib/NGCP/Schema/Result/voip_subscriber_timezone.pm
+++ b/lib/NGCP/Schema/Result/voip_subscriber_timezone.pm
@@ -1,6 +1,6 @@
 package NGCP::Schema::Result::voip_subscriber_timezone;
 use Scalar::Util qw(blessed);
-use base qw/DBIx::Class::Core/;
+use parent qw/DBIx::Class::Core/;
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/ResultSet.pm b/lib/NGCP/Schema/ResultSet.pm
index f980d67e..6eb4b5ad 100644
--- a/lib/NGCP/Schema/ResultSet.pm
+++ b/lib/NGCP/Schema/ResultSet.pm
@@ -1,6 +1,6 @@
 package NGCP::Schema::ResultSet;
 use Sipwise::Base '-skip'=>['TryCatch'];
-use base 'DBIx::Class::ResultSet';
+use parent 'DBIx::Class::ResultSet';
 
 our $VERSION = '2.007';
 
diff --git a/lib/NGCP/Schema/Storage/DateTime/Format/MySQL.pm b/lib/NGCP/Schema/Storage/DateTime/Format/MySQL.pm
index 2d5a318a..96b8192b 100644
--- a/lib/NGCP/Schema/Storage/DateTime/Format/MySQL.pm
+++ b/lib/NGCP/Schema/Storage/DateTime/Format/MySQL.pm
@@ -5,7 +5,7 @@ use warnings;
 
 our $VERSION = '0.06';
 
-use base ("DateTime::Format::MySQL");
+use parent 'DateTime::Format::MySQL';
 
 sub format_time
 {