diff --git a/.gitignore b/.gitignore
index 1258c55..d3bbe24 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,3 +32,5 @@
 /llvm-project-12.0.0.src.tar.xz.sig
 /llvm-project-12.0.1rc1.src.tar.xz
 /llvm-project-12.0.1rc1.src.tar.xz.sig
+/llvm-project-12.0.1rc3.src.tar.xz
+/llvm-project-12.0.1rc3.src.tar.xz.sig
diff --git a/mlir.spec b/mlir.spec
index d46b740..96ec38c 100644
--- a/mlir.spec
+++ b/mlir.spec
@@ -1,4 +1,4 @@
-%global rc_ver 1
+%global rc_ver 3
 %global maj_ver 12
 %global min_ver 0
 %global patch_ver 1
@@ -109,6 +109,9 @@ export LD_LIBRARY_PATH=%{_builddir}/%{mlir_srcdir}/%{name}/%{_build}/%{_lib}
 %{_libdir}/cmake/mlir
 
 %changelog
+* Thu Jul 01 2021 Tom Stellard <tstellar@redhat.com> - 12.0.1~rc3-1
+- 12.0.1-rc3 Release
+
 * Wed Jun 02 2021 Tom Stellard <tstellar@redhat.com> - 12.0.1~rc1-1
 - 12.0.1-rc1 Release
 
diff --git a/sources b/sources
index 8eb72d6..888b597 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (llvm-project-12.0.1rc1.src.tar.xz) = 6d013d04aee4983f542e69aa237410bc41328e462ecfe6fade976be745a59f891944bc38cb6170c8ebfc35607bac54ca7493e22072a543f78b427af507d80850
-SHA512 (llvm-project-12.0.1rc1.src.tar.xz.sig) = 06b6fb77c3f9ad12892903c4dfd82f95182cb6b67eede1072960486b8c216b24aa8dd77dd8c40985e8df87e8b3966f37bb448d93be210344dfa1fc18498de6c2
+SHA512 (llvm-project-12.0.1rc3.src.tar.xz) = af81a3412ba726cd5e78dd42b2df9126c02f36174501dcc0b520fdfdafcda5eccb9f6541c54d6c348b4b886fa9c397ef6e6e7dd1b5e12278780e1c0c78d347cd
+SHA512 (llvm-project-12.0.1rc3.src.tar.xz.sig) = 8e33d605d4e0cf409d540cea9dba46132b09d388554cb9ce16c9af6410f78096a73c6005786b7338160b8c157a4d187bb16949b98a284867682a18713fccf547