diff --git a/.gitignore b/.gitignore
index 4b66d77..20d5177 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,3 +13,4 @@ cmake-2.8.2.tar.gz
 /cmake-2.8.6-rc1.tar.gz
 /cmake-2.8.6-rc2.tar.gz
 /cmake-2.8.6-rc3.tar.gz
+/cmake-2.8.6-rc4.tar.gz
diff --git a/cmake.spec b/cmake.spec
index 147acf4..c4c2962 100644
--- a/cmake.spec
+++ b/cmake.spec
@@ -4,11 +4,11 @@
 # Set to bcond_with or use --without gui to disable qt4 gui build
 %bcond_without gui
 # Set to RC version if building RC, else %{nil}
-%define rcver -rc3
+%define rcver -rc4
 
 Name:           cmake
 Version:        2.8.6
-Release:        0.4.rc3%{?dist}
+Release:        0.5.rc4%{?dist}
 Summary:        Cross-platform make system
 
 Group:          Development/Tools
@@ -160,6 +160,9 @@ update-mime-database %{_datadir}/mime &> /dev/null || :
 
 
 %changelog
+* Thu Sep 22 2011 Orion Poplawski <orion@cora.nwra.com> - 2.8.6-0.5.rc4
+- Update to 2.8.6 RC 4
+
 * Tue Sep 13 2011 Orion Poplawski <orion@cora.nwra.com> - 2.8.6-0.4.rc3
 - Update to 2.8.6 RC 3
 
diff --git a/sources b/sources
index ffeeb04..b5a5452 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-83a62ac91e7727bf50f48d992fb348e9  cmake-2.8.6-rc3.tar.gz
+a7b89aef52b4167a6a66ac3843466366  cmake-2.8.6-rc4.tar.gz