diff --git a/deps/doctest b/deps/doctest
index 7b98851..b7c21ec 160000
--- a/deps/doctest
+++ b/deps/doctest
@@ -1 +1 @@
-Subproject commit 7b9885133108ae301ddd16e2651320f54cafeba7
+Subproject commit b7c21ec5ceeadb4951b00396fc1e4642dd347e5f