diff --git a/postgresql15.changes b/postgresql15.changes
index 7e81258..258fc59 100644
--- a/postgresql15.changes
+++ b/postgresql15.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 Feb 29 14:36:57 UTC 2024 - Dominique Leuenberger <dimstar@opensuse.org>
 
diff --git a/postgresql15.spec b/postgresql15.spec
index d30efa8..4e20674 100644
--- a/postgresql15.spec
+++ b/postgresql15.spec
@@ -20,7 +20,7 @@
 %define pgmajor 15
 %define buildlibs 0
 %define tarversion %{pgversion}
-%define latest_supported_llvm_ver 18
+%define latest_supported_llvm_ver 17
 
 ### CUT HERE ###
 %define pgname postgresql%pgmajor