diff --git a/third_party/cctz b/third_party/cctz
index cc84fe459..7b847489f 160000
--- a/third_party/cctz
+++ b/third_party/cctz
@@ -1 +1 @@
-Subproject commit cc84fe4593a739669423b8bda0af4b0fed48630a
+Subproject commit 7b847489f862a29a3238f52d675ed2344002e105