diff --git a/postgresql12.changes b/postgresql12.changes
index 18414e5..e99292a 100644
--- a/postgresql12.changes
+++ b/postgresql12.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed May  1 15:24:39 UTC 2024 - Aaron Puchert <aaronpuchert@alice-dsl.net>
+
+- Require LLVM <= 17 for now, because LLVM 18 doesn't seem to work.
+
 -------------------------------------------------------------------
 Thu Mar  7 15:04:40 UTC 2024 - Sarah Kriesch <sarah.kriesch@opensuse.org>
 
diff --git a/postgresql12.spec b/postgresql12.spec
index d241d24..e4fa01b 100644
--- a/postgresql12.spec
+++ b/postgresql12.spec
@@ -20,7 +20,7 @@
 %define pgmajor 12
 %define buildlibs 0
 %define tarversion %{pgversion}
-%define latest_supported_llvm_ver 18
+%define latest_supported_llvm_ver 17
 
 ### CUT HERE ###
 %define pgname postgresql%pgmajor