diff --git a/rust-toolset.yaml b/rust-toolset.yaml
index ec229ce..09d3e2f 100644
--- a/rust-toolset.yaml
+++ b/rust-toolset.yaml
@@ -9,7 +9,7 @@ data:
     module: [MIT]
   dependencies:
     - buildrequires:
-        platform: [el8.5.0]
+        platform: [el8.4.0]
         llvm-toolset: [rhel8]
         rust-toolset: [rhel8]
       requires: