diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index e4376d7db..1789b9c66 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit e4376d7db6358daed9269029eac98ad6bc0b50d7
+Subproject commit 1789b9c667dd7bf82bb35e599ecadace9dcd7f85