diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index 17e437dae..99b6b4d1b 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit 17e437dae23eb41bb41e97b45558efce421851cb
+Subproject commit 99b6b4d1b7152fc2a76ea9f56379923ba3b098df