diff --git a/python313.changes b/python313.changes
index a186d33..2c6003d 100644
--- a/python313.changes
+++ b/python313.changes
@@ -2,6 +2,8 @@
 Thu Nov 14 07:06:20 UTC 2024 - Matej Cepl <mcepl@cepl.eu>
 
 - Remove -IVendor/ from python-config boo#1231795
+- Require exact clang18 and llvm18, because apparently CPython is
+  not ready for 19 yet (gh#python/cpython!125499).
 
 -------------------------------------------------------------------
 Thu Oct 24 16:09:00 UTC 2024 - Matej Cepl <mcepl@cepl.eu>
diff --git a/python313.spec b/python313.spec
index 37f7ffb..173e0e6 100644
--- a/python313.spec
+++ b/python313.spec
@@ -257,8 +257,8 @@ BuildRequires:  python3-python-docs-theme >= 2022.1
 
 %if %{with experimental_jit}
 # needed for experimental_jit
-BuildRequires:  clang => 18
-BuildRequires:  llvm => 18
+BuildRequires:  clang18
+BuildRequires:  llvm18
 %endif
 
 %if %{without GIL}