--- cpanfile
+++ cpanfile
@@ -6,7 +6,6 @@ requires "Carp" => "0";
 requires "Eval::Closure" => "0";
 requires "Exception::Class" => "0";
 requires "Exporter" => "0";
-requires "List::Util" => "1.29";
 requires "Scalar::Util" => "0";
 requires "overload" => "0";
 requires "strict" => "0";
--- lib/Params/ValidationCompiler/Compiler.pm
+++ lib/Params/ValidationCompiler/Compiler.pm
@@ -7,7 +7,6 @@ our $VERSION = '0.31';
 
 use Carp            qw( croak );
 use Eval::Closure   qw( eval_closure );
-use List::Util 1.29 qw( pairkeys pairvalues );
 use Params::ValidationCompiler::Exceptions;
 use Scalar::Util qw( blessed looks_like_number reftype );
 use overload     ();
@@ -47,6 +46,27 @@ my %known
     = map { $_ => 1 }
     qw( debug name name_is_optional named_to_list params return_object slurpy );
 
+sub _pairkeys (@) {
+    if (@_ % 2) {
+        warnings::warnif('misc', 'Odd number of elements in pairkeys');
+    }
+
+    return
+        map $_[$_*2],
+        0 .. int($#_/2);
+}
+
+sub _pairvalues (@) {
+    if (@_ % 2) {
+        require Carp;
+        warnings::warnif('misc', 'Odd number of elements in pairvalues');
+    }
+
+    return
+        map $_[$_*2 + 1],
+        0 .. int($#_/2);
+}
+
 # I'd rather use Moo here but I want to make things relatively high on the
 # CPAN river like DateTime use this distro, so reducing deps is important.
 sub new {
@@ -77,7 +97,7 @@ sub new {
 
         my @specs
             = $p{named_to_list}
-            ? pairvalues @{ $p{params} }
+            ? _pairvalues @{ $p{params} }
             : @{ $p{params} };
 
         $class->_validate_param_spec($_) for @specs;
@@ -392,7 +412,7 @@ sub _compile_named_args_list_check {
 
     $self->_compile_named_args_check_body( { @{ $self->params } } );
 
-    my @keys = map { perlstring($_) } pairkeys @{ $self->params };
+    my @keys = map { perlstring($_) } _pairkeys @{ $self->params };
 
     # If we don't handle the one-key case specially we end up getting a
     # warning like "Scalar value @args{"bar"} better written as $args{"bar"}
--- Makefile.PL
+++ Makefile.PL
@@ -23,7 +23,6 @@ my %WriteMakefileArgs = (
     "Eval::Closure" => 0,
     "Exception::Class" => 0,
     "Exporter" => 0,
-    "List::Util" => "1.29",
     "Scalar::Util" => 0,
     "overload" => 0,
     "strict" => 0,
@@ -55,7 +54,6 @@ my %FallbackPrereqs = (
   "ExtUtils::MakeMaker" => 0,
   "File::Spec" => 0,
   "Hash::Util" => 0,
-  "List::Util" => "1.29",
   "Scalar::Util" => 0,
   "Specio" => "0.14",
   "Test2::Plugin::NoWarnings" => 0,
--- META.json
+++ META.json
@@ -74,7 +74,6 @@
             "Eval::Closure" : "0",
             "Exception::Class" : "0",
             "Exporter" : "0",
-            "List::Util" : "1.29",
             "Scalar::Util" : "0",
             "overload" : "0",
             "strict" : "0",
--- META.yml
+++ META.yml
@@ -40,7 +40,6 @@ requires:
   Eval::Closure: '0'
   Exception::Class: '0'
   Exporter: '0'
-  List::Util: '1.29'
   Scalar::Util: '0'
   overload: '0'
   strict: '0'
--- t/00-report-prereqs.dd
+++ t/00-report-prereqs.dd
@@ -59,7 +59,6 @@ do { my $x = {
                                       'Eval::Closure' => '0',
                                       'Exception::Class' => '0',
                                       'Exporter' => '0',
-                                      'List::Util' => '1.29',
                                       'Scalar::Util' => '0',
                                       'overload' => '0',
                                       'strict' => '0',
@@ -84,4 +83,4 @@ do { my $x = {
                  }
      };
   $x;
- }
\ No newline at end of file
+ }