diff --git a/.gitignore b/.gitignore
index 5044bfa..2e3684d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,5 @@
 /rcairo-1.15.11-test-missing-files.tar.gz
 /cairo-1.15.12.gem
 /rcairo-1.15.12-test-missing-files.tar.gz
+/cairo-1.15.13.gem
+/rcairo-1.15.13-test-missing-files.tar.gz
diff --git a/rubygem-cairo.spec b/rubygem-cairo.spec
index 00f7ca6..caf37bf 100644
--- a/rubygem-cairo.spec
+++ b/rubygem-cairo.spec
@@ -2,7 +2,7 @@
 %global	header_dir	%{ruby_vendorarchdir}
 
 %global	gem_name		cairo
-%global	gemver		1.15.12
+%global	gemver		1.15.13
 #%%global	gem_githash	af3e3fc059
 
 # Upstream GIT http://github.com/rcairo/
@@ -222,6 +222,9 @@ ruby ./test/run-test.rb
 %{header_dir}/rb_cairo.h
 
 %changelog
+* Wed May  2 2018 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.15.13-1
+- 1.15.13
+
 * Fri Mar 16 2018 Mamoru TASAKA <mtasaka@fedoraproject.org> - 1.15.12-1
 - 1.15.12
 
diff --git a/sources b/sources
index f4f3c7b..026bdc3 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (cairo-1.15.12.gem) = e4b3f7851aa5658fec56090a7c0a54748b04bfa2b6ecab555c5c1228b1ec337401b29bf32d7201efc260adbb56af47a4c400a91034c5562f002b4475b3413745
-SHA512 (rcairo-1.15.12-test-missing-files.tar.gz) = aadde826759dec642835080e8fb094d33127f2675f15aa51f7c2b7f6d32512c72db77c7f8e1549b1209a69eceeafb12d248e230c346b649f65e50b18caaca664
+SHA512 (cairo-1.15.13.gem) = accab295acbb5b82e456c96b29681c37befdb6d1d4c93f8dd3d6cdd772374a3c6fad914f1ed097ee0575dd1e184eb22794f315bc8d02d0558f89f88b63870b86
+SHA512 (rcairo-1.15.13-test-missing-files.tar.gz) = c9b92c5c5757d7eaebad6829b657b268173ede64b53c3a872a9f26df46fcfcab4f0b83e6dcae6621c143d50d42a38ff0dad5894429ea9143c2f6e5368c6efa92