diff --git a/action.yml b/action.yml
index 8681063..de12ebb 100644
--- a/action.yml
+++ b/action.yml
@@ -19,6 +19,7 @@ inputs:
   components:
     description: Comma-separated list of components to be additionally installed
     required: false
+    default: miri, rust-src
 
 outputs:
   cachekey: