diff --git a/init.lua b/init.lua
index bf65b70..26eb411 100644
--- a/init.lua
+++ b/init.lua
@@ -35,7 +35,7 @@ if not _G["$multi"] then
 	_G["$multi"] = {multi=multi,thread=thread}
 end
 
-multi.Version = "15.3.0"
+multi.Version = "15.3.1"
 multi.Name = "root"
 multi.NIL = {Type="NIL"}
 local NIL = multi.NIL
@@ -168,17 +168,23 @@ function multi:newConnection(protect,func,kill)
 
 		c1(function(...)
 			cn.__count[1] = cn.__count[1] + 1
+			c1:Lock()
 			if cn.__count[1] == cn.__hasInstances[1] then
 				cn:Fire(...)
 				cn.__count[1] = 0
+				c1:Unlock()
+				c2:Unlock()
 			end
 		end)
 
 		c2(function(...)
 			cn.__count[1] = cn.__count[1] + 1
+			c2:Lock()
 			if cn.__count[1] == cn.__hasInstances[1] then
 				cn:Fire(...)
 				cn.__count[1] = 0
+				c1:Unlock()
+				c2:Unlock()
 			end
 		end)
 		return cn
@@ -259,6 +265,7 @@ function multi:newConnection(protect,func,kill)
 	function c:fastMode()
 		if find_optimization then return self end
 		function self:Fire(...)
+			if lock then return end
 			for i=1,#fast do
 				fast[i](...)
 			end
diff --git a/rockspecs/multi-15.3-1.rockspec b/rockspecs/multi-15.3-1.rockspec
new file mode 100644
index 0000000..d811a82
--- /dev/null
+++ b/rockspecs/multi-15.3-1.rockspec
@@ -0,0 +1,39 @@
+package = "multi"
+version = "15.3-1"
+source = {
+   url = "git://github.com/rayaman/multi.git",
+   tag = "15.3.1",
+}
+description = {
+   summary = "Lua Multi tasking library",
+   detailed = [[
+      This library contains many methods for multi tasking. Features non coroutine based multi-tasking, coroutine based multi-tasking, and system threading (Requires use of an integration).
+      Check github for documentation.
+   ]],
+   homepage = "https://github.com/rayaman/multi",
+   license = "MIT"
+}
+dependencies = {
+   "lua >= 5.1"
+}
+build = {
+   type = "builtin",
+   modules = {
+      ["multi"] = "init.lua",
+      ["multi.integration.lanesManager"] = "integration/lanesManager/init.lua",
+      ["multi.integration.lanesManager.extensions"] = "integration/lanesManager/extensions.lua",
+      ["multi.integration.lanesManager.threads"] = "integration/lanesManager/threads.lua",
+      ["multi.integration.loveManager"] = "integration/loveManager/init.lua",
+      ["multi.integration.loveManager.extensions"] = "integration/loveManager/extensions.lua",
+      ["multi.integration.loveManager.threads"] = "integration/loveManager/threads.lua",
+      --["multi.integration.lovrManager"] = "integration/lovrManager/init.lua",
+      --["multi.integration.lovrManager.extensions"] = "integration/lovrManager/extensions.lua",
+      --["multi.integration.lovrManager.threads"] = "integration/lovrManager/threads.lua",
+      ["multi.integration.pesudoManager"] = "integration/pesudoManager/init.lua",
+      ["multi.integration.pesudoManager.extensions"] = "integration/pesudoManager/extensions.lua",
+      ["multi.integration.pesudoManager.threads"] = "integration/pesudoManager/threads.lua",
+      ["multi.integration.luvitManager"] = "integration/luvitManager.lua",
+      ["multi.integration.threading"] = "integration/threading.lua",
+      --["multi.integration.networkManager"] = "integration/networkManager.lua",
+   }
+}
\ No newline at end of file