diff --git a/action.yml b/action.yml
index 8ec44db..7d8dcd0 100644
--- a/action.yml
+++ b/action.yml
@@ -14,5 +14,5 @@ outputs:
   jsonString:
     description: 'JSON string'
 runs:
-  using: 'node12'
+  using: 'node16'
   main: 'dist/index.js'