diff --git a/cipd_client_version b/cipd_client_version
index 7e5e6d141d..74548cff18 100644
--- a/cipd_client_version
+++ b/cipd_client_version
@@ -1 +1 @@
-git_revision:b9c4670197dcefd8762d6e509302acd3efc6e303
+git_revision:521b9b64770d3b43a221b1e2bd277687616adacf