diff --git a/lockfile.json b/lockfile.json
index 1c320bd12..08ca3d152 100644
--- a/lockfile.json
+++ b/lockfile.json
@@ -393,7 +393,7 @@
     "revision": "8a841fb20ce683bfbb3469e6ba67f2851cfdf94a"
   },
   "leo": {
-    "revision": "304611b5eaf53aca07459a0a03803b83b6dfd3b3"
+    "revision": "2ce5d9c7a66430aeb1c500275fae7a32f60913a2"
   },
   "linkerscript": {
     "revision": "f99011a3554213b654985a4b0a65b3b032ec4621"
diff --git a/queries/leo/highlights.scm b/queries/leo/highlights.scm
index 67a398d6c..e34b9942d 100644
--- a/queries/leo/highlights.scm
+++ b/queries/leo/highlights.scm
@@ -31,6 +31,8 @@
 
 "self" @variable.builtin
 
+"async" @keyword.coroutine
+
 [
   "finalize"
   "function"