diff --git a/opus.spec b/opus.spec
index 8babdc3..1430915 100644
--- a/opus.spec
+++ b/opus.spec
@@ -1,8 +1,8 @@
-%global candidate beta
+%global candiate rc
 
 Name:     opus
 Version:  1.3
-Release:  0.4%{?candidate:.%{candidate}}%{?dist}
+Release:  0.5%{?candidate:.%{candidate}}%{?dist}
 Summary:  An audio codec for use in low-delay speech and audio communication
 License:  BSD
 URL:      https://www.opus-codec.org/
@@ -34,7 +34,8 @@ cp %{SOURCE1} .
 cp %{SOURCE2} .
 
 %build
-%configure --enable-custom-modes --disable-static
+%configure --enable-custom-modes --disable-static \
+           --enable-hardening --enable-ambisonics
 
 make %{?_smp_mflags} V=1
 
@@ -63,6 +64,9 @@ make check
 %{_datadir}/man/man3/opus_*.3.gz
 
 %changelog
+* Sat June  2 2018 Peter Robinson <pbrobinson@fedoraproject.org> 1.3-0.5.rc
+- Update to 1.3 rc
+
 * Fri Mar  9 2018 Peter Robinson <pbrobinson@fedoraproject.org> 1.3-0.4.beta
 - Add gcc BR
 
diff --git a/sources b/sources
index 39eb51c..898828b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (opus-1.3-beta.tar.gz) = c107edc0762d9d215e5fccc796b6b6fa6aa5d574968430e3e95bca953ed2cacf11f4a625be8e5a3f9212c9cfafa439a323fe3bb1f9fb72d0b91e8f37dcdfa6fa
+SHA512 (opus-1.3-rc.tar.gz) = 3f5e00758491188b009451d3ab29ba323d87d9568a380e59afe84316e617a7a43d793401241efdc779a349ff5e7e7475b318892e1cfea171502991dd1941284a