diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index a866df98f..81f53a4a0 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit a866df98fe3532ed28f9753a0a2ea4599f71fa52
+Subproject commit 81f53a4a05f3a255c3a293f53a8161cd9b59212c