Bolt doesn't explode on contact?

Hello, I'm making a lightning bolt script, and I want the bolt to explode when it touches something. However, the touched event doesn't get detected when it hits an NPC.

Example: link

local bolts = {}

local function makeBolts(start, goal)
local lastPos = start
local step = 5
local off = 15
local range = 100
local distance = (start - goal).magnitude

if distance > range then distance = range end			

	for i = 0, distance, step do
		local offset = Vector3.new(
			math.random(-off, off),
			math.random(-off, off),
			math.random(-off, off)
		) / 10
		local start = lastPos
		local goal = start + (goal - start).unit * step + offset
		local bolt = lightningBolt:Clone()
		bolt.Parent = game.Workspace
		bolt.CFrame = CFrame.new(start:Lerp(goal, 0.5), goal)
		bolt.Size = Vector3.new(bolt.Size.X, bolt.Size.Y, (start - goal).magnitude)
		
		table.insert(bolts, bolt)
	
		lastPos = goal
		game:GetService("Debris"):AddItem(bolt, 0.5)
	end
	
	for _, v in pairs(bolts) do
		v.Touched:Connect(function(hit)
			if not debounce and hit.Name ~= "Dawn's Birth" and hit.Name ~= "Smoke" then
				debounce = true
				script.Shake:FireClient(player)
				lightningExplosion:Play()
				module.CreateExplosion(magicType, bolts[#bolts].CFrame, bolts[#bolts])
	
				for i in pairs(bolts) do
					bolts[i] = nil
				end
		
				wait(0.5)
				debounce = false
			end
		end)
	end
end

local start = lightningBolt.Position
local goal = mouse	
makeBolts(start, goal)