diff --git a/gcc-toolset-15.spec b/gcc-toolset-15.spec
index 6b54860..d26c3ee 100644
--- a/gcc-toolset-15.spec
+++ b/gcc-toolset-15.spec
@@ -47,7 +47,7 @@ Source3: macros.gts
 Source4: enable.in
 Source5: gcc-toolset-env.in
 
-Requires: %{scl_prefix}runtime
+Requires: %{scl_prefix}runtime == %{version}-%{release}
 Requires: %{scl_prefix}gcc %{scl_prefix}gcc-c++ %{scl_prefix}gcc-gfortran
 Requires: %{scl_prefix}binutils
 # None of these are in GTS in RHEL9 and later.