Synchronize submodules
diff --git a/third_party/tensorflow b/third_party/tensorflow
index 9dfedbd..2e56481 160000
--- a/third_party/tensorflow
+++ b/third_party/tensorflow
@@ -1 +1 @@
-Subproject commit 9dfedbd7f0fc7f37dd8fac30bcc76c290ba4ebc7
+Subproject commit 2e56481abcef1dd1625fba465a5d02ee6b347842