diff --git a/third_party/cctz b/third_party/cctz
index 1f2268a..306fd9b 160000
--- a/third_party/cctz
+++ b/third_party/cctz
@@ -1 +1 @@
-Subproject commit 1f2268a1b66f413095a4f3dfc2ff87cbe425fbf4
+Subproject commit 306fd9b37247a72145ca3f39e59203fb7dfcc890