diff --git a/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py b/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py
index eec36f053..074b65b4a 100644
--- a/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py
@@ -1464,7 +1464,7 @@ class NonlinAttentionModule(nn.Module):
             channels // (2 * ratio), channel_dim=-1,
             min_positive=ScheduledFloat((0.0, 0.1), (8000.0, 0.05)),
             max_positive=1.0,
-            min_abs=2.0,
+            min_abs=1.5,
             max_abs=ScheduledFloat((0.0, 5.0), (8000.0, 10.0), default=1.0),
         )
         self.sigmoid = nn.Sigmoid()