diff --git a/Build.PL b/Build.PL
index f066e80..c05199a 100755
--- a/Build.PL
+++ b/Build.PL
@@ -32,19 +32,14 @@ my $builder = $class->new(
     requires => {
         'perl'              => '5.016',
         'Sub::Util'         => '0',
-        'Runtime::Debugger' => '0.19',
+        'Runtime::Debugger' => '0.20',
         'Data::Trace'       => '0.19',
         'Tiny::Prof'        => '0',
         'Mojolicious'       => '0',
         'YAML::XS'          => '0',
         'Data::Printer'     => '0',
     },
-    add_to_cleanup => [
-        'e-*',
-        'MANIFEST*.bak',
-        'README*',
-        'blib/',
-    ],
+    add_to_cleanup => [ 'e-*', 'MANIFEST*.bak', 'README*', 'blib/', ],
     meta_merge     => {
         resources => {
             bugtracker => 'https://github.com/poti1/e/issues',
diff --git a/Changes b/Changes
index 5fe57a4..5060bb8 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,11 @@
 Revision history for e
 
+=================
+1.04 - 2024-05-14
+=================
+
+Increased Runtime::Debugger -> 0.20
+
 =================
 1.03 - 2024-05-13
 =================
diff --git a/lib/e.pm b/lib/e.pm
index f8e97ac..ef484dc 100644
--- a/lib/e.pm
+++ b/lib/e.pm
@@ -20,7 +20,7 @@ e - Unleash the power of e!
 
 =cut
 
-our $VERSION = 1.03;
+our $VERSION = '1.04';
 
 =head1 SYNOPSIS
 
@@ -78,7 +78,7 @@ sub monkey_patch {
     my ( $class, %patch ) = @_;
 
     require Sub::Util;    # Can omit set_subname, but it makes traces nicer.
-    no strict "refs";
+    no strict 'refs';
 
     for ( keys %patch ) {
         *{"${class}::$_"} =
@@ -103,7 +103,7 @@ sub import {
         # Debugging.
         repl => sub {
             require Runtime::Debugger;
-            Runtime::Debugger->VERSION( 0.19 )
+            Runtime::Debugger->VERSION( '0.20' )
               ;    # Since not using "use MODULE VERSION".
             Runtime::Debugger::repl(
                 levels_up => 1,
@@ -114,7 +114,7 @@ sub import {
         # Tracing.
         trace => sub {    # Stack or var trace.
             require Data::Trace;
-            Data::Trace->VERSION( 0.19 )
+            Data::Trace->VERSION( '0.19' )
               ;           # Since not using "use MODULE VERSION".
             Data::Trace::Trace( @_ );
         },
@@ -122,7 +122,7 @@ sub import {
         # Alias for trace.
         watch => sub {    # Stack or var trace.
             require Data::Trace;
-            Data::Trace->VERSION( 0.19 )
+            Data::Trace->VERSION( '0.19' )
               ;           # Since not using "use MODULE VERSION".
             Data::Trace::Trace( @_ );
         },