diff --git a/dgl/src/pugl-upstream b/dgl/src/pugl-upstream
index 311dd39b..d4d964f1 160000
--- a/dgl/src/pugl-upstream
+++ b/dgl/src/pugl-upstream
@@ -1 +1 @@
-Subproject commit 311dd39b15a1603da65769f5eb9cdea5d7e97e19
+Subproject commit d4d964f129b4bf999c53ba40381bd1095fafb649