diff --git a/Makefile.PL b/Makefile.PL
index f2531438dd..b5b10dbd6b 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -4,76 +4,77 @@ use warnings;
 
 
 
-use ExtUtils::MakeMaker 6.31;
+use ExtUtils::MakeMaker 6.30;
 
 
 
 my %WriteMakefileArgs = (
-  'ABSTRACT' => 'A modern web-based genome browser.',
-  'AUTHOR' => 'Robert Buels <rbuels@cpan.org>',
-  'BUILD_REQUIRES' => {
-    'Capture::Tiny' => '0',
-    'File::Copy::Recursive' => '0',
-    'File::Next' => '0',
-    'Test::More' => '0'
+  "ABSTRACT" => "A modern web-based genome browser.",
+  "AUTHOR" => "Robert Buels <rbuels\@cpan.org>",
+  "BUILD_REQUIRES" => {
+    "Test::More" => 0
   },
-  'CONFIGURE_REQUIRES' => {
-    'ExtUtils::MakeMaker' => '6.31'
+  "CONFIGURE_REQUIRES" => {
+    "ExtUtils::MakeMaker" => "6.30"
   },
-  'DISTNAME' => 'JBrowse',
-  'EXE_FILES' => [
-    'bin/ucsc-to-json.pl',
-    'bin/remove-track.pl',
-    'bin/generate-names.pl',
-    'bin/prepare-refseqs.pl',
-    'bin/wig-to-json.pl',
-    'bin/biodb-to-json.pl',
-    'bin/draw-basepair-track.pl',
-    'bin/flatfile-to-json.pl',
-    'bin/bam-to-json.pl',
+  "DISTNAME" => "JBrowse",
+  "EXE_FILES" => [
+    "bin/ucsc-to-json.pl",
+    "bin/remove-track.pl",
+    "bin/generate-names.pl",
+    "bin/prepare-refseqs.pl",
+    "bin/wig-to-json.pl",
+    "bin/biodb-to-json.pl",
+    "bin/draw-basepair-track.pl",
+    "bin/flatfile-to-json.pl",
+    "bin/bam-to-json.pl",
   ],
-  'LICENSE' => 'perl',
-  'NAME' => 'JBrowse',
-  'PREREQ_PM' => {
-    'Bio::Annotation::SimpleValue' => '0',
-    'Bio::FeatureIO' => '0',
-    'Bio::GFF3::LowLevel::Parser' => '0',
-    'Bio::Index::Fasta' => '0',
-    'Bio::OntologyIO' => '0',
-    'Bio::Root::Version' => '1.006000',
-    'Bio::SeqFeature::Annotated' => '0',
-    'Carp' => '0',
-    'Cwd' => '0',
-    'DBI' => '0',
-    'Data::Dumper' => '0',
-    'Devel::Size' => '0',
-    'Exporter' => '0',
-    'Fcntl' => '0',
-    'File::Basename' => '0',
-    'File::Path' => '0',
-    'File::Spec' => '0',
-    'File::Spec::Functions' => '0',
-    'File::Temp' => '0',
-    'FindBin' => '0',
-    'GD::Image' => '0',
-    'Getopt::Long' => '0',
-    'Heap::Simple' => '0',
-    'Heap::Simple::XS' => '0',
-    'IO::File' => '0',
-    'JSON' => '2',
-    'List::Util' => '0',
-    'local::lib' => '0',
-    'POSIX' => '0',
-    'PerlIO::gzip' => '0',
-    'Pod::Usage' => '0',
-    'Scalar::Util' => '0',
-    'Storable' => '0',
-    'constant' => '0',
-    'vars' => '0'
+  "LICENSE" => "perl",
+  "NAME" => "JBrowse",
+  "PREREQ_PM" => {
+    "Bio::Annotation::SimpleValue" => 0,
+    "Bio::FeatureIO" => 0,
+    "Bio::GFF3::LowLevel::Parser" => 0,
+    "Bio::Index::Fasta" => 0,
+    "Bio::OntologyIO" => 0,
+    "Bio::Root::Version" => "1.006000",
+    "Bio::SeqFeature::Annotated" => 0,
+    "Carp" => 0,
+    "Cwd" => 0,
+    "DBI" => 0,
+    "Data::Dumper" => 0,
+    "Devel::Size" => 0,
+    "Exporter" => 0,
+    "Fcntl" => 0,
+    "File::Basename" => 0,
+    "File::Path" => 0,
+    "File::Spec" => 0,
+    "File::Spec::Functions" => 0,
+    "File::Temp" => 0,
+    "FindBin" => 0,
+    "GD::Image" => 0,
+    "Getopt::Long" => 0,
+    "Hash::Merge" => 0,
+    "Heap::Simple" => 0,
+    "Heap::Simple::XS" => 0,
+    "IO::File" => 0,
+    "JSON" => 2,
+    "List::Util" => 0,
+    "POSIX" => 0,
+    "PerlIO::gzip" => 0,
+    "Pod::Usage" => 0,
+    "Scalar::Util" => 0,
+    "Storable" => 0,
+    "base" => 0,
+    "constant" => 0,
+    "local::lib" => 0,
+    "strict" => 0,
+    "vars" => 0,
+    "warnings" => 0
   },
-  'VERSION' => '1.3.0',
-  'test' => {
-    'TESTS' => 't/*.t'
+  "VERSION" => "1.3.0",
+  "test" => {
+    "TESTS" => "t/*.t"
   }
 );