diff --git a/crt/aws-c-cal b/crt/aws-c-cal
index 77ca3aea8..71810b1ad 160000
--- a/crt/aws-c-cal
+++ b/crt/aws-c-cal
@@ -1 +1 @@
-Subproject commit 77ca3aea879bc768082fe7ec715adcde8e98c332
+Subproject commit 71810b1ade7af4747104ae245b74240ae8e8cf77