diff --git a/third_party/caffe2 b/third_party/caffe2
index db0a812..640c8f9 160000
--- a/third_party/caffe2
+++ b/third_party/caffe2
@@ -1 +1 @@
-Subproject commit db0a8120cd6a4feb4bc106bb0ddd24c97496f100
+Subproject commit 640c8f966d1819de11f8b4e8eec58a33d9a68b2b