diff --git a/rubygem-rspec-core.spec b/rubygem-rspec-core.spec
index 2733dfd..e9624ee 100644
--- a/rubygem-rspec-core.spec
+++ b/rubygem-rspec-core.spec
@@ -4,7 +4,7 @@
 %global	rpmminorver	.%(echo %preminorver | sed -e 's|^\\.\\.*||')
 %global	fullver	%{majorver}%{?preminorver}
 
-%global	fedorarel	1
+%global	fedorarel	2
 
 %global	gemname	rspec-core
 %global	geminstdir	%{gemdir}/gems/%{gemname}-%{fullver}
@@ -94,6 +94,12 @@ EOF
 
 popd
 
+# Workaround for issue of invalid date format on gemspec file
+# (bug 706914)
+pushd .%{gemdir}/specifications
+sed -i -e '\@s\.date@s|{\(....-..-..\) [^ ][^ ]*}|{\1}|' *.gemspec
+popd
+
 %build
 
 %install
@@ -148,6 +154,9 @@ ruby -rubygems -Ilib/ -S bin/rspec \
 %{geminstdir}/spec/
 
 %changelog
+* Tue May 24 2011 Mamoru Tasaka <mtasaka@fedoraproject.org> - 2.6.2-2
+- Workaround for invalid date format in gemspec file (bug 706914)
+
 * Mon May 23 2011 Mamoru Tasaka <mtasaka@fedoraproject.org> - 2.6.2-1
 - 2.6.2