diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index 99f3be2cc..23ec4e4ef 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit 99f3be2cc26632fcfb68f53d2fcd3baf0b8c6387
+Subproject commit 23ec4e4ef18d55b7201363b3b3ce8ab8635599b8