diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index a157dbcd9..d7556a00a 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit a157dbcd96e7a1b3714b5b0c49049c8ec653707c
+Subproject commit d7556a00a784d367ce7f99683f12c30e578a1991