diff --git a/action.yml b/action.yml
index 5281d42..c73bfe0 100644
--- a/action.yml
+++ b/action.yml
@@ -8,7 +8,8 @@ branding:
 inputs:
   toolchain:
     description: Rust toolchain specification -- see https://rust-lang.github.io/rustup/concepts/toolchains.html#toolchain-specification
-    required: true
+    required: false
+    default: nightly
   targets:
     description: Comma-separated list of target triples to install for this toolchain
     required: false
@@ -18,6 +19,7 @@ inputs:
   components:
     description: Comma-separated list of components to be additionally installed
     required: false
+    default: clippy
 
 outputs:
   cachekey:
diff --git a/scripts/update-revs.sh b/scripts/update-revs.sh
index 84693a3..697d135 100755
--- a/scripts/update-revs.sh
+++ b/scripts/update-revs.sh
@@ -11,7 +11,7 @@ patch_releases=(
     1.12.1 1.15.1 1.22.1 1.24.1 1.26.1 1.26.2 1.27.1 1.27.2 1.29.1 1.29.2 1.30.1
     1.31.1 1.34.1 1.34.2 1.41.1 1.43.1 1.44.1 1.45.1 1.45.2 1.52.1 1.56.1 1.58.1
     1.62.1 1.66.1 1.67.1 1.68.1 1.68.2 1.71.1 1.72.1 1.74.1 1.77.1 1.77.2 1.80.1
-    1.84.1
+    1.84.1 1.85.1
 )
 
 releases() {