diff --git a/lib/external/pattern_language b/lib/external/pattern_language
index c697828ce186b..d4648c4a596f1 160000
--- a/lib/external/pattern_language
+++ b/lib/external/pattern_language
@@ -1 +1 @@
-Subproject commit c697828ce186b493291648bca6e4449ce7242db6
+Subproject commit d4648c4a596f19646519f274fa99738eb2a314de