diff --git a/Plugins/UnLua/Source/ThirdParty/Lua/Lua.Build.cs b/Plugins/UnLua/Source/ThirdParty/Lua/Lua.Build.cs
index f0d8780da..b5bfcb41d 100644
--- a/Plugins/UnLua/Source/ThirdParty/Lua/Lua.Build.cs
+++ b/Plugins/UnLua/Source/ThirdParty/Lua/Lua.Build.cs
@@ -190,6 +190,7 @@ private void BuildForMac()
 
         PublicDefinitions.Add("LUA_USE_MACOSX");
         PublicAdditionalLibraries.Add(libFile);
+        RuntimeDependencies.Add(libFile);
     }
 
     private void BuildForIOS()
diff --git a/Plugins/UnLua/Source/UnLua/Private/LuaEnv.cpp b/Plugins/UnLua/Source/UnLua/Private/LuaEnv.cpp
index 4843ea0ee..8e5d4726e 100644
--- a/Plugins/UnLua/Source/UnLua/Private/LuaEnv.cpp
+++ b/Plugins/UnLua/Source/UnLua/Private/LuaEnv.cpp
@@ -99,7 +99,7 @@ namespace UnLua
         else
         {
 #if 504 == LUA_VERSION_NUM
-            lua_gc(L, LUA_GCGEN);
+            lua_gc(L, LUA_GCGEN, 0, 0);
 #else
             // default Lua GC config in UnLua
             lua_gc(L, LUA_GCSETPAUSE, 100);
diff --git a/Plugins/UnLuaExtensions/LuaSocket/Source/src/auxiliar.cpp b/Plugins/UnLuaExtensions/LuaSocket/Source/src/auxiliar.cpp
index 93a66a09f..3620e5460 100644
--- a/Plugins/UnLuaExtensions/LuaSocket/Source/src/auxiliar.cpp
+++ b/Plugins/UnLuaExtensions/LuaSocket/Source/src/auxiliar.cpp
@@ -51,7 +51,7 @@ int auxiliar_tostring(lua_State *L) {
     lua_pushstring(L, "class");
     lua_gettable(L, -2);
     if (!lua_isstring(L, -1)) goto error;
-    sprintf(buf, "%p", lua_touserdata(L, 1));
+	snprintf(buf,32,"%p", lua_touserdata(L, 1));
     lua_pushfstring(L, "%s: %s", lua_tostring(L, -1), buf);
     return 1;
 error:
@@ -88,7 +88,7 @@ void *auxiliar_checkclass(lua_State *L, const char *classname, int objidx) {
     void *data = auxiliar_getclassudata(L, classname, objidx);
     if (!data) {
         char msg[45];
-        sprintf(msg, "%.35s expected", classname);
+    	snprintf(msg,45,"%.35s expected", classname);
         luaL_argerror(L, objidx, msg);
     }
     return data;
@@ -102,7 +102,7 @@ void *auxiliar_checkgroup(lua_State *L, const char *groupname, int objidx) {
     void *data = auxiliar_getgroupudata(L, groupname, objidx);
     if (!data) {
         char msg[45];
-        sprintf(msg, "%.35s expected", groupname);
+    	snprintf(msg,45,"%.35s expected", groupname);
         luaL_argerror(L, objidx, msg);
     }
     return data;
diff --git a/Plugins/UnLuaExtensions/LuaSocket/Source/src/options.cpp b/Plugins/UnLuaExtensions/LuaSocket/Source/src/options.cpp
index 2b53c67b7..a8640ce7b 100644
--- a/Plugins/UnLuaExtensions/LuaSocket/Source/src/options.cpp
+++ b/Plugins/UnLuaExtensions/LuaSocket/Source/src/options.cpp
@@ -35,7 +35,7 @@ int opt_meth_setoption(lua_State *L, p_opt opt, p_socket ps)
         opt++;
     if (!opt->func) {
         char msg[57];
-        sprintf(msg, "unsupported option `%.35s'", name);
+    	snprintf(msg,57,"unsupported option `%.35s'", name);
         luaL_argerror(L, 2, msg);
     }
     return opt->func(L, ps);
@@ -48,7 +48,7 @@ int opt_meth_getoption(lua_State *L, p_opt opt, p_socket ps)
         opt++;
     if (!opt->func) {
         char msg[57];
-        sprintf(msg, "unsupported option `%.35s'", name);
+    	snprintf(msg,57,"unsupported option `%.35s'", name);
         luaL_argerror(L, 2, msg);
     }
     return opt->func(L, ps);
diff --git a/Source/TPSProjectEditor.Target.cs b/Source/TPSProjectEditor.Target.cs
index 724897f55..f9afa4f7b 100644
--- a/Source/TPSProjectEditor.Target.cs
+++ b/Source/TPSProjectEditor.Target.cs
@@ -15,9 +15,22 @@
 using UnrealBuildTool;
 using System.Collections.Generic;
 
-public class TPSProjectEditorTarget : TargetRules
{
    public TPSProjectEditorTarget(TargetInfo Target) : base(Target)
    {
        Type = TargetType.Editor;
+public class TPSProjectEditorTarget : TargetRules
+{
+    public TPSProjectEditorTarget(TargetInfo Target) : base(Target)
+    {
+        Type = TargetType.Editor;
         DefaultBuildSettings = BuildSettingsVersion.V2;
-        ExtraModuleNames.AddRange(
            new string[]
            {
+        ExtraModuleNames.AddRange(
+            new string[]
+            {
                 "TPSProject"
-            }
            );
-    }
}
\ No newline at end of file
+            }
+            );
+        if (Platform == UnrealTargetPlatform.Mac)
+        {
+            bOverrideBuildEnvironment = true;
+            AdditionalCompilerArguments = "-Wno-unused-but-set-variable";
+        }
+    }
+}
diff --git a/TPSProject.uproject b/TPSProject.uproject
index 44304c170..95a4424af 100644
--- a/TPSProject.uproject
+++ b/TPSProject.uproject
@@ -1,6 +1,6 @@
 {
 	"FileVersion": 3,
-	"EngineAssociation": "4.26",
+	"EngineAssociation": "4.27",
 	"Category": "",
 	"Description": "",
 	"Modules": [