diff --git a/ext/etc/etc.c b/ext/etc/etc.c
index 16c6671a0c..23127ca613 100644
--- a/ext/etc/etc.c
+++ b/ext/etc/etc.c
@@ -56,7 +56,7 @@ static VALUE sGroup;
 #endif
 RUBY_EXTERN char *getlogin(void);
 
-#define RUBY_ETC_VERSION "1.4.3.1"
+#define RUBY_ETC_VERSION "1.4.3"
 
 #ifdef HAVE_RB_DEPRECATE_CONSTANT
 void rb_deprecate_constant(VALUE mod, const char *name);
diff --git a/ext/io/console/io-console.gemspec b/ext/io/console/io-console.gemspec
index 0ff60640b1..d4f52763b7 100644
--- a/ext/io/console/io-console.gemspec
+++ b/ext/io/console/io-console.gemspec
@@ -1,5 +1,5 @@
 # -*- ruby -*-
-_VERSION = "0.7.1.1"
+_VERSION = "0.7.1"
 
 Gem::Specification.new do |s|
   s.name = "io-console"
diff --git a/ext/io/nonblock/io-nonblock.gemspec b/ext/io/nonblock/io-nonblock.gemspec
index d388dae9a8..6a16c8b03b 100644
--- a/ext/io/nonblock/io-nonblock.gemspec
+++ b/ext/io/nonblock/io-nonblock.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |spec|
   spec.name          = "io-nonblock"
-  spec.version       = "0.3.0.1"
+  spec.version       = "0.3.0"
   spec.authors       = ["Nobu Nakada"]
   spec.email         = ["nobu@ruby-lang.org"]
 
diff --git a/ext/io/wait/io-wait.gemspec b/ext/io/wait/io-wait.gemspec
index 726315e7b4..e850e10bf9 100644
--- a/ext/io/wait/io-wait.gemspec
+++ b/ext/io/wait/io-wait.gemspec
@@ -1,4 +1,4 @@
-_VERSION = "0.3.1.1"
+_VERSION = "0.3.1"
 
 Gem::Specification.new do |spec|
   spec.name          = "io-wait"
diff --git a/version.h b/version.h
index eb6de0bc2c..d54d4bff62 100644
--- a/version.h
+++ b/version.h
@@ -11,7 +11,7 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 8
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 167
+#define RUBY_PATCHLEVEL 168
 
 #include "ruby/version.h"
 #include "ruby/internal/abi.h"