diff --git a/lignumis/prototypes/content/deep-miner.lua b/lignumis/prototypes/content/deep-miner.lua
index 1a6b3aa..8f8db39 100644
--- a/lignumis/prototypes/content/deep-miner.lua
+++ b/lignumis/prototypes/content/deep-miner.lua
@@ -4,7 +4,7 @@ local DeepMiner = DeepMinerFactory("deep-miner")
 local entity = DeepMiner.EntityBuilder:new():build({
     resource_searching_radius = 0.49,
     energy_usage = "25MW",
-    mining_speed = 15,
+    mining_speed = 7.5,
     energy_source = {
         emissions_per_minute = { noise = 2000 }
     },