diff --git a/HISTORY b/HISTORY
index 07f8262a..9858cc63 100644
--- a/HISTORY
+++ b/HISTORY
@@ -2,6 +2,7 @@ History of Onigmo (Oniguruma-mod)
 
 2019/01/30: Version 6.2.0
 
+2019/01/30: [dist] Update LTVERSION to "6:5:0".
 2019/01/30: [dist] Delete all autotools generated files from the repository.
                    (PR #115)
 2019/01/30: [test] Update tests. (PR #127)
diff --git a/configure.ac b/configure.ac
index f2c4d0a6..f6841b19 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,5 +1,5 @@
 dnl Process this file with autoconf to produce a configure script.
-AC_INIT(onigmo, 6.1.3)
+AC_INIT(onigmo, 6.2.0)
 
 AC_CONFIG_MACRO_DIR([m4])
 
@@ -42,7 +42,7 @@ dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_LIBTOOL
 AM_PROG_CC_C_O
-LTVERSION="6:4:0"
+LTVERSION="6:5:0"
 AC_SUBST(LTVERSION)
 
 AC_PROG_INSTALL
diff --git a/onigmo.h b/onigmo.h
index bf7c0ae6..fbbf6c9b 100644
--- a/onigmo.h
+++ b/onigmo.h
@@ -38,8 +38,8 @@ extern "C" {
 #endif
 
 #define ONIGMO_VERSION_MAJOR   6
-#define ONIGMO_VERSION_MINOR   1
-#define ONIGMO_VERSION_TEENY   3
+#define ONIGMO_VERSION_MINOR   2
+#define ONIGMO_VERSION_TEENY   0
 
 #ifndef ONIG_EXTERN
 # ifdef RUBY_EXTERN