diff --git a/ref_gl/gl4es b/ref_gl/gl4es
index a0e87aa3..4f2151a1 160000
--- a/ref_gl/gl4es
+++ b/ref_gl/gl4es
@@ -1 +1 @@
-Subproject commit a0e87aa362efa072598b7b671df67f8565b387fe
+Subproject commit 4f2151a104ac45bf5417a0063e96148204f8256c