diff --git a/.circleci/config.yml b/.circleci/config.yml
index fb5ff6f62eb..8ac1d54a7d4 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -62,11 +62,11 @@ aliases:
 
   - &restore-cache-buck
     keys:
-      - v1-buck-{{ arch }}-v2017.11.16.01
+      - v1-buck-{{ arch }}-v2017.09.04.02
   - &save-cache-buck
     paths:
       - ~/buck
-    key: v1-buck-{{ arch }}-v2017.11.16.01
+    key: v1-buck-{{ arch }}-v2017.09.04.02
 
   - &restore-cache-watchman
     keys: