diff --git a/utils/activations.py b/utils/activations.py
index 954d2e198..aa3ddf071 100644
--- a/utils/activations.py
+++ b/utils/activations.py
@@ -5,7 +5,7 @@ import torch.nn as nn
 import torch.nn.functional as F
 
 
-# SiLU https://arxiv.org/pdf/1905.02244.pdf ----------------------------------------------------------------------------
+# SiLU https://arxiv.org/pdf/1606.08415.pdf ----------------------------------------------------------------------------
 class SiLU(nn.Module):  # export-friendly version of nn.SiLU()
     @staticmethod
     def forward(x):