diff --git a/action.yml b/action.yml
index ac2beb9..0e44cc6 100644
--- a/action.yml
+++ b/action.yml
@@ -39,7 +39,7 @@ outputs:
   svg:
     description: "The diagram contents as text"
 runs:
-  using: "node12"
+  using: "node16"
   main: "index.js"
 branding:
   color: "purple"