diff --git a/dist/index.js b/dist/index.js
index 6893f45..0b5e7b4 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -1067,6 +1067,8 @@ const utils = __importStar(__nccwpck_require__(918));
 function run() {
     return __awaiter(this, void 0, void 0, function* () {
         try {
+            core.warning(`This action's default branch has been renamed to "main"`);
+            core.warning(`Referencing this action with "@master" is deprecated and will stop working after June 30th 2021`);
             const inputs = {
                 token: core.getInput('token'),
                 path: core.getInput('path'),
diff --git a/report.txt b/report.txt
new file mode 100644
index 0000000..0ed9ecc
--- /dev/null
+++ b/report.txt
@@ -0,0 +1 @@
+1631793779