diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index c8cbfa306..56c1951f3 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit c8cbfa306943e0594b34be21ae28d5444b55e107
+Subproject commit 56c1951f3ad94579591171157a5780f7775e2421