diff --git a/scss/mixins/_background-variant.scss b/scss/mixins/_background-variant.scss
index 494439d2b4..51dc15091f 100644
--- a/scss/mixins/_background-variant.scss
+++ b/scss/mixins/_background-variant.scss
@@ -12,6 +12,7 @@
       background-color: darken($color, 10%) !important;
     }
   }
+  @include deprecate("The `bg-variant` mixin", "v4.3.2", "v5");
 }
 
 @mixin bg-gradient-variant($parent, $color) {