diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index f83b855b9..4b1ecbaf8 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit f83b855b9778327cb0ac72996b73ae990966ec1c
+Subproject commit 4b1ecbaf8d99cf022e21f9f7c7f7c5bccbf38bff