diff --git a/third-party/libb64 b/third-party/libb64
index 35bb415f7..91a38519c 160000
--- a/third-party/libb64
+++ b/third-party/libb64
@@ -1 +1 @@
-Subproject commit 35bb415f70709884130f30eb24972dc13cf095a9
+Subproject commit 91a38519cb18d3869b4f1c99b0a80726547054af