diff --git a/.travis.yml b/.travis.yml
index c1538c7..848d188 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,5 @@
 sudo: required
-dist: xenial # (16.04)
-# bionic (18.04) is not yet available in travis
+dist: bionic # (18.04)
 
 language: cpp
 
diff --git a/LuaEngine b/LuaEngine
index dab3724..35e85a7 160000
--- a/LuaEngine
+++ b/LuaEngine
@@ -1 +1 @@
-Subproject commit dab372408c0b7038e646fe8c3a42059163476925
+Subproject commit 35e85a71ae723db0b5ab915bf4bf7bad1e8f0c9f