diff --git a/estimator b/estimator
index 8d4c633d0..687b1644c 160000
--- a/estimator
+++ b/estimator
@@ -1 +1 @@
-Subproject commit 8d4c633d0d1d560c85921805907e0df913ec7416
+Subproject commit 687b1644c37e1cb62868b139b37494a1a5202497