diff --git a/mods/ITEMS/mcl_deepslate/init.lua b/mods/ITEMS/mcl_deepslate/init.lua
index 0abb0c579..27e10ef97 100644
--- a/mods/ITEMS/mcl_deepslate/init.lua
+++ b/mods/ITEMS/mcl_deepslate/init.lua
@@ -111,7 +111,7 @@ for _, p in pairs(deepslate_ores) do
 end
 
 if copper_mod then
-	register_deepslate_ore("Copper", "mcl_copper:raw_copper", "mcl_copper:copper_ingot", 4, 4)
+	register_deepslate_ore("Copper", "mcl_copper:raw_copper", "mcl_copper:copper_ingot", 3, 4)
 end
 
 local redstone_timer = 68.28