diff --git a/rust.spec b/rust.spec
index bdf82289df75d26b2d09bdfd67626dbb83ac5513..8cf235855c1a03bec1ac1e573a55df348dc9d065 100644
--- a/rust.spec
+++ b/rust.spec
@@ -26,7 +26,7 @@
 
 Name:                rust
 Version:             1.90.0
-Release:             1
+Release:             2
 Summary:             The Rust Programming Language
 License:             Apache-2.0 OR MIT
 URL:                 https://www.rust-lang.org
@@ -217,6 +217,7 @@ BuildRequires:       git
 Requires:            %{name} = %{version}-%{release}
 Obsoletes:           cargo-vendor <= 0.1.23
 Provides:            cargo-vendor = %{version}-%{release}
+Conflicts:           cargo-rpm-macros < 1:23
 %description -n cargo
 Cargo is a tool that allows Rust projects to declare their various dependencies
 and ensure that you'll always get a repeatable build.
@@ -557,6 +558,9 @@ export %{rust_env}
 %{_mandir}/man1/cargo*.1*
 
 %changelog
+* Thu Oct 23 2025 Funda Wang <fundawang@yeah.net> - 1.90.0-2
+- add conflicts on older version of cargo-rpm-macros
+
 * Thu Sep 25 2025 jchzhou <zhoujiacheng@iscas.ac.cn> - 1.90.0-1
 - Update to 1.90.0