diff --git a/vendor/nim-chronos b/vendor/nim-chronos
index 879c91724..ac9b3e304 160000
--- a/vendor/nim-chronos
+++ b/vendor/nim-chronos
@@ -1 +1 @@
-Subproject commit 879c917242ab2af0a8332669f92987cd1e40370f
+Subproject commit ac9b3e304f630a450efc996f47dc9e6133246a87