diff --git a/External/cpp-optparse b/External/cpp-optparse
index 5d46ee5bb..b8c75f118 160000
--- a/External/cpp-optparse
+++ b/External/cpp-optparse
@@ -1 +1 @@
-Subproject commit 5d46ee5bb5c7b5e8988c719aa2b45119df6c5092
+Subproject commit b8c75f118e5aff1a72ff3a5ce72177ab7bd2faad