diff --git a/.gitignore b/.gitignore
index 708700d..1f5b387 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,4 @@
 /gdk3-3.1.3.gem
 /gdk3-3.1.6.gem
 /gdk3-3.1.7.gem
+/gdk3-3.1.8.gem
diff --git a/rubygem-gdk3.spec b/rubygem-gdk3.spec
index d148de6..4029496 100644
--- a/rubygem-gdk3.spec
+++ b/rubygem-gdk3.spec
@@ -5,7 +5,7 @@
 # Planned for F-20+ only
 Summary:	Ruby binding of GDK-3.x
 Name:		rubygem-%{gem_name}
-Version:	3.1.7
+Version:	3.1.8
 Release:	1%{?dist}
 
 Group:		Development/Languages
@@ -85,7 +85,7 @@ find . -name \*.rb -print0 | xargs --null chmod 0644
 gem specification -l --ruby %{SOURCE0} > %{gem_name}.gemspec
 
 # Allow ruby-gnome2 no less than ones
-sed -i -e 's|= 3\.1\.7|>= 3.1.7|' %{gem_name}.gemspec
+sed -i -e 's|= 3\.1\.8|>= 3.1.8|' %{gem_name}.gemspec
 sed -i -e '\@s\.extensions@d'  %{gem_name}.gemspec
 
 # Add license text
@@ -173,6 +173,9 @@ popd
 %exclude	%{gem_instdir}/test/
 
 %changelog
+* Mon Jul 17 2017 Mamoru TASAKA <mtasaka@fedoraproject.org> - 3.1.8-1
+- 3.1.8
+
 * Fri Jul 14 2017 Mamoru TASAKA <mtasaka@fedoraproject.org> - 3.1.7-1
 - 3.1.7
 
diff --git a/sources b/sources
index ca12b18..dbad045 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (gdk3-3.1.7.gem) = adcb4a67ab47a09ce4c72ba52854f0d6c920722adf133e171aa38bf73666454332436f2d2288551093d59ea4696a55d053048ffa028f7075a62441f1abfd5df1
+SHA512 (gdk3-3.1.8.gem) = ede0c85a4095946525601ff781d2c8b66cdf17292eca3a5c3398cefa4273d6ac4a02f6aff2c6ea0f0e8399232ebd47b3eb90868c7e6fe3a523574502b5c779d8