diff --git a/sbcl.spec b/sbcl.spec
index 885935d..6e8e504 100644
--- a/sbcl.spec
+++ b/sbcl.spec
@@ -30,13 +30,13 @@
 
 # Latest upstream binary releases, used for bootstrapping
 %global bs_x86    1.4.3
-%global bs_x86_64 2.3.6
+%global bs_x86_64 2.3.11
 %global bs_arm64  1.4.2
 %global bs_ppc64  1.5.8
 
 Name: 	 sbcl
 Summary: Steel Bank Common Lisp
-Version: 2.4.0
+Version: 2.3.11
 Release: 1%{?dist}
 
 # See COPYING for a license breakdown
@@ -258,8 +258,8 @@ fi
 
 
 %changelog
-* Wed Jan 03 2024 Anthony Green <green@redhat.com> - 2.4.0-1
-- Update to 2.4.0
+* Thu Jan 04 2024 Anthony Green <green@redhat.com> - 2.3.11-1
+- Update to 2.3.11
 
 * Sat Jul 22 2023 Fedora Release Engineering <releng@fedoraproject.org> - 2.3.6-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
diff --git a/sources b/sources
index 7be5a7d..2b7d787 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (sbcl-2.4.0-source.tar.bz2) = 4917e56fbb2ba7fc942e7d8dd8dbb0c5bcc8dbb660951dac1aa9a27d7d6287e5dcab887037b4cd7ec335f8ae7318ea0f4d8e3468bd91710db99069b531858ac1
-SHA512 (sbcl-2.4.0-documentation-html.tar.bz2) = 9df2bc0aab3ea2040f6dd0b309bda4f566c30a654adcab11a3ca34403868c2ddc63250b1b107d7fdebd675c7e32d1a15ef428c1cebb2cb492686fb60a133b5ce
+SHA512 (sbcl-2.3.11-source.tar.bz2) = 47d4c6dfb809fb97e61677c74e5d9905d5a8d5118bad1120996c1dcc3c3105272046b5b2e6db0fc8e6fb45a1aea5dc7713ef7ee1c8ae7a58da807096e6c1e971
+SHA512 (sbcl-2.3.11-documentation-html.tar.bz2) = 63c68ded7e4b4dd48e77567176c3b90ad01d7c9a182dd5685ead1740bbb6dc296ccbd47402f0436e817121bef4e561ada36399dd4849ca59dd7a989341df9652