diff --git a/manifests/init.pp b/manifests/init.pp
index 302904c..5792596 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -36,35 +36,21 @@
 # }
 #
 class cpan (
-  $manage_package,
-  $config_hash,
-  $package_name,
-  Optional[Array[String[1]]] $config_file = undef,
-  Optional[Array[String[1]]] $config_dir = undef,
-  $package_ensure    = 'present',
-  $manage_config     = true,
-  $installdirs       = 'site',
-  $local_lib         = false,
-  $config_template   = 'cpan/cpan.conf.erb',
-  $ftp_proxy         = undef,
-  $http_proxy        = undef,
-  $urllist           = [],
+  Boolean                                     $manage_package,
+  Hash[String,Variant[String,Array[String]]]  $config_hash,
+  Array[String[1],1]                          $package_name,
+  Optional[Array[String[1]]]                  $config_file      = undef,
+  Optional[Array[String[1]]]                  $config_dir       = undef,
+  String                                      $package_ensure   = 'present',
+  Boolean                                     $manage_config    = true,
+  String                                      $installdirs      = 'site',
+  Boolean                                     $local_lib        = false,
+  String                                      $config_template  = 'cpan/cpan.conf.erb',
+  Optional[String]                            $ftp_proxy        = undef,
+  Optional[String]                            $http_proxy       = undef,
+  Array[String]                               $urllist          = [],
 ) {
 
-  validate_bool($manage_config)
-  validate_bool($manage_package)
-  validate_string($installdirs)
-  validate_bool($local_lib)
-  validate_string($config_template)
-  validate_string($package_ensure)
-  if $ftp_proxy {
-    validate_string($ftp_proxy)
-  }
-  if $http_proxy {
-    validate_string($http_proxy)
-  }
-  validate_array($urllist)
-
   anchor { 'cpan::begin': }
   -> class { '::cpan::install': }
   -> class { '::cpan::config': }