diff --git a/kernel-tools.spec b/kernel-tools.spec
index ec30c68..5a917c9 100644
--- a/kernel-tools.spec
+++ b/kernel-tools.spec
@@ -34,7 +34,7 @@
 %global upstream_sublevel %(echo $((%{base_sublevel} + 1)))
 
 # The rc snapshot level
-%global rcrev 2
+%global rcrev 4
 # Set rpm version accordingly
 %global rpmversion 5.%{upstream_sublevel}.0
 %endif
@@ -486,6 +486,12 @@ popd
 %license linux-%{kversion}/COPYING
 
 %changelog
+* Mon Oct 04 2021 Justin M. Forbes <jforbes@fedoraproject.org> - 5.15.0-0.rc4.git0.1
+- Linux v5.15-rc4
+
+* Mon Oct 04 2021 Justin M. Forbes <jforbes@fedoraproject.org> - 5.15.0-0.rc3.git0.1
+- Linux v5.15-rc3
+
 * Mon Sep 20 2021 Justin M. Forbes <jforbes@fedoraproject.org> - 5.15.0-0.rc2.git0.1
 - Linux v5.15-rc2
 
diff --git a/sources b/sources
index 509d160..f5528db 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
 SHA512 (linux-5.14.tar.xz) = 8e4f3ec3d36f774280f75dc7b004a43e09417af58f12e9c9f8348976659d4cfda7ad905f306f43fed66a27922e5c45db22e46bbfa7a0b9f365012380de3b6f64
-SHA512 (patch-5.15-rc2.xz) = 7e6f05e4e7917883b5bba2ec7c04ca65fb76c21ed5e80d45f769b754b0573a8586a32a474326dbd89e86bbd851f5f2782ec22c50ea26bcb87a287e0ba5366e08
+SHA512 (patch-5.15-rc4.xz) = 77c882542da2ec8b4d98bbfa8fd61e21a5aea6d6edf72eeda12df747b0c25ce36b292a2999d98069e33fb188f217b6b346f5cebf4dd8ee6e55d90c926bca582e