Update Buck

Change-Id: Ica5128dc2ab2c7bf3f95a10f8fe072e92e86524b
diff --git a/.buckversion b/.buckversion
index ff1c137..ea13b51 100644
--- a/.buckversion
+++ b/.buckversion
@@ -1 +1 @@
-2b80cf780ae31bee6609ebc1bbab9ce6fd004dbe
+ca48f0fff22f7fbcb856fd2faa6e15e7de900775