diff --git a/external/lang b/external/lang
index 23fa802b..4af67b53 160000
--- a/external/lang
+++ b/external/lang
@@ -1 +1 @@
-Subproject commit 23fa802bb34ae10c082ac003c941a9270ce5ca3a
+Subproject commit 4af67b531395d41afde9da850d20408e4ae4416d