diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index 050c73e0a..17e437dae 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit 050c73e0a3b576b1b1e23c8e6d2e737c38037f8b
+Subproject commit 17e437dae23eb41bb41e97b45558efce421851cb