diff --git a/src/bin/tools/grant-exec-perms.ts b/src/bin/tools/grant-exec-perms.ts
index 5f3d53c0..dab91c6b 100644
--- a/src/bin/tools/grant-exec-perms.ts
+++ b/src/bin/tools/grant-exec-perms.ts
@@ -1,11 +1,17 @@
 import { getProjectRoot } from "./getProjectRoot";
 import { join as pathJoin } from "path";
-import { chmodSync, statSync, constants } from "fs";
+import { constants } from "fs";
+import { chmod, stat } from "fs/promises";
 
-import(pathJoin(getProjectRoot(), "package.json")).then(({ bin }) => {
-    Object.entries<string>(bin).forEach(([, scriptPath]) => {
+async () => {
+    var { bin } = await import(pathJoin(getProjectRoot(), "package.json"));
+
+    var promises = Object.values<string>(bin).map(async scriptPath => {
         const fullPath = pathJoin(getProjectRoot(), scriptPath);
-        const newMode = statSync(fullPath).mode | constants.S_IXUSR | constants.S_IXGRP | constants.S_IXOTH;
-        chmodSync(fullPath, newMode);
+        const oldMode = (await stat(fullPath)).mode;
+        const newMode = oldMode | constants.S_IXUSR | constants.S_IXGRP | constants.S_IXOTH;
+        await chmod(fullPath, newMode);
     });
-});
+
+    await Promise.all(promises);
+};