diff --git a/dotnet-examples/offline-tts/run-aishell3.sh b/dotnet-examples/offline-tts/run-aishell3.sh
index 2c3429ca..7e5cc639 100755
--- a/dotnet-examples/offline-tts/run-aishell3.sh
+++ b/dotnet-examples/offline-tts/run-aishell3.sh
@@ -1,7 +1,8 @@
 #!/usr/bin/env bash
 
 if [ ! -f ./vits-zh-aishell3/vits-aishell3.onnx ]; then
-  wget -qq https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-zh-aishell3.tar.bz2
+  # wget -qq https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-zh-aishell3.tar.bz2
+  curl -OL https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-zh-aishell3.tar.bz2
   tar xf vits-zh-aishell3.tar.bz2
   rm vits-zh-aishell3.tar.bz2
 fi
diff --git a/dotnet-examples/offline-tts/run-piper.sh b/dotnet-examples/offline-tts/run-piper.sh
index c9979beb..a2674091 100755
--- a/dotnet-examples/offline-tts/run-piper.sh
+++ b/dotnet-examples/offline-tts/run-piper.sh
@@ -1,7 +1,8 @@
 #!/usr/bin/env bash
 
 if [ ! -f ./vits-piper-en_US-amy-low/en_US-amy-low.onnx ]; then
-  wget -qq https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-piper-en_US-amy-low.tar.bz2
+  # wget -qq https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-piper-en_US-amy-low.tar.bz2
+  curl -OL https://github.com/k2-fsa/sherpa-onnx/releases/download/tts-models/vits-piper-en_US-amy-low.tar.bz2
   tar xf vits-piper-en_US-amy-low.tar.bz2
   rm vits-piper-en_US-amy-low.tar.bz2
 fi