diff --git a/Build.PL b/Build.PL
index fedf18e..3a875cb 100755
--- a/Build.PL
+++ b/Build.PL
@@ -6,7 +6,7 @@ use Module::Build;
 
 my $build = Module::Build->new(
     dist_name       => "Acme-GuessNumber",
-    dist_version    => "0.04",
+    dist_version    => "0.05",
     dist_abstract   => "Automatic number guessing game robot",
     dist_author     => "imacat <imacat\@mail.imacat.idv.tw>",
     license         => "perl",
diff --git a/Changes b/Changes
index cfd269e..d565c3a 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,7 @@
 Acme-GuessNumber change log
 
+2021-02-08	version 0.05
+
 2021-02-07
 	Acme-GuessNumber is now hosted on GitHub.
 	 1. Added MANIFEST.SKIP.
@@ -10,7 +12,7 @@ Acme-GuessNumber change log
 	 5. Added the CPAN distribution metadata to Makefile.PL and
 	    Build.PL.
 
-2013-05-10
+2013-05-10	version 0.04
 	 1. lib/Acme/GuessNumber.pm: Applied the patch from Mark A. Smith
             <jprogrammer082@gmail.com>, in order to fix the English errors
             in the POD.  Thank you, Mark, although I will not share my
diff --git a/Makefile.PL b/Makefile.PL
index 0fd35da..a6390ee 100755
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -6,7 +6,7 @@ use ExtUtils::MakeMaker;
 
 WriteMakefile(
     NAME        => "Acme::GuessNumber",
-    VERSION     => "0.04",
+    VERSION     => "0.05",
     ABSTRACT    => "Automatic number guessing game robot",
     AUTHOR      => "imacat <imacat\@mail.imacat.idv.tw>",
     PREREQ_PM   => { },