diff --git a/server.py b/server.py
index b2850e6..1c67fc8 100644
--- a/server.py
+++ b/server.py
@@ -26,7 +26,7 @@ if not STOCKFISH_PATH:
     else:
         STOCKFISH_PATH = "stockfish"
 
-STOCKFISH_DEPTH = int(os.environ.get("STOCKFISH_DEPTH", 15))
+STOCKFISH_DEPTH = int(os.environ.get("STOCKFISH_DEPTH", 25))
 
 _stockfish_lock = threading.Lock()
 
@@ -127,7 +127,7 @@ class StockfishEngine:
         self._drain_queue()
 
         self._send(f"position fen {fen}")
-        self._send(f"go depth {STOCKFISH_DEPTH}")
+        self._send(f"go depth {STOCKFISH_DEPTH} movetime 15000")
         self._searching = True
 
         score_cp = None