diff --git a/.gitignore b/.gitignore
index ec03054..0871789 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@ onig-5.9.2.tar.gz
 /onig-6.3.0.tar.gz
 /onig-6.4.0.tar.gz
 /onig-6.5.0.tar.gz
+/onig-6.6.1.tar.gz
diff --git a/oniguruma.spec b/oniguruma.spec
index 17ca4e1..5fa7391 100644
--- a/oniguruma.spec
+++ b/oniguruma.spec
@@ -1,5 +1,5 @@
 Name:		oniguruma
-Version:	6.5.0
+Version:	6.6.1
 Release:	1%{?dist}
 Summary:	Regular expressions library
 
@@ -77,9 +77,9 @@ find $RPM_BUILD_ROOT -name '*.la' \
 %doc	AUTHORS
 %license	COPYING
 %doc	HISTORY
-%doc	README
+%doc	README.md
 %doc	index.html
-%lang(ja)	%doc	README.ja
+%lang(ja)	%doc	README_japanese
 %lang(ja)	%doc	index_ja.html
 
 %{_libdir}/libonig.so.4*
@@ -100,6 +100,9 @@ find $RPM_BUILD_ROOT -name '*.la' \
 %{_libdir}/pkgconfig/%{name}.pc	
 
 %changelog
+* Tue Sep  5 2017 Mamoru TASAKA <mtasaka@fedoraproject.org> - 6.6.1-1
+- 6.6.1
+
 * Sun Aug 13 2017 Mamoru TASAKA <mtasaka@fedoraproject.org> - 6.5.0-1
 - 6.5.0
 
diff --git a/sources b/sources
index 28a1c7a..eab2e16 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (onig-6.5.0.tar.gz) = 0a92553992ac1f53db48144732e0e3b9a5790c456271b05e6701d2b26053413e01ae2c64ec3c47249e4047bf5e6f00a398e76209acf7afb805802a8b976b6dc1
+SHA512 (onig-6.6.1.tar.gz) = ce9ac1336e2782fcfdac8cb4a257162f57dd8c2be20f74771a1ab9671b5926ea9c9fc07e2f4b04d80a2138a6e4c0e3295ac3f257e4424acf888e343870a377cc