diff --git a/action.yml b/action.yml
index 356b2db..eeec619 100644
--- a/action.yml
+++ b/action.yml
@@ -59,4 +59,4 @@ outputs:
     description: \"yes\" or \"no\", indicating the tag represents a semantic version build.
 runs:
   using: "node16"
-  main: "src/main.js"
+  main: "src/main.mjs"
diff --git a/src/main.js b/src/main.mjs
similarity index 100%
rename from src/main.js
rename to src/main.mjs