diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index 55324f345..efaf1b20f 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit 55324f345e955bdc8ba23b32feeae31acbbc3ffc
+Subproject commit efaf1b20f117a09cd918905f04cdf18c0bae6f7f