diff --git a/emul/libz80 b/emul/libz80
index 8a1f935..55520ab 160000
--- a/emul/libz80
+++ b/emul/libz80
@@ -1 +1 @@
-Subproject commit 8a1f935daa3c288b68121051e8e45068684f80a4
+Subproject commit 55520abc1c69978aad3ff65493dbea00ff940d8b