diff --git a/lockfile.json b/lockfile.json
index 3d4543c7b..1705ecb04 100644
--- a/lockfile.json
+++ b/lockfile.json
@@ -84,7 +84,7 @@
     "revision": "cfcbca3f8f734773878e00d7bfcedea98eb10be2"
   },
   "glimmer": {
-    "revision": "ffc91bfd011fd7fac593c3c2f0661c1d21ace3f2"
+    "revision": "664ee635b3c8d25ada29e9f885f44f477d1dfcab"
   },
   "glsl": {
     "revision": "ffb93961426926554a0ba4a389ea6e9d6fafdea9"