diff --git a/src/aiia/model/config.py b/src/aiia/model/config.py
index e2ae83e..02bc709 100644
--- a/src/aiia/model/config.py
+++ b/src/aiia/model/config.py
@@ -8,7 +8,7 @@ class AIIAConfig:
     def __init__(
         self,
         model_name: str = "AIIA",
-        kernel_size: int = 5,
+        kernel_size: int = 3,
         activation_function: str = "GELU",
         hidden_size: int = 512,
         num_hidden_layers: int = 12,