diff --git a/gcc-toolset-15-gcc.spec b/gcc-toolset-15-gcc.spec
index 285acfa..01155e6 100644
--- a/gcc-toolset-15-gcc.spec
+++ b/gcc-toolset-15-gcc.spec
@@ -4,6 +4,7 @@
 %global have_scl_utils 0
 %endif
 %global gts_ver 15
+%global gts_next  %(v="%{gts_ver}"; echo $((++v)))
 %{?scl_package:%global scl gcc-toolset-%{gts_ver}}
 %global scl_prefix gcc-toolset-%{gts_ver}-
 %if %have_scl_utils
@@ -300,7 +301,7 @@ Requires: libgcc >= 4.1.2-43
 Requires: libgomp >= 4.4.4-13
 # lto-wrapper invokes make
 Requires: make
-Requires: %{?scl_prefix}runtime >= %{gts_ver}.0
+Requires: (%{?scl_prefix}runtime >= %{gts_ver} with %{?scl_prefix}runtime < %{gts_next})
 AutoReq: true
 # Various libraries are imported.  #1859893 asks us to list them all.
 Provides: bundled(libiberty)