diff --git a/.github/workflows/test-build-wheel.yaml b/.github/workflows/test-build-wheel.yaml
index 91eaea01a..d2f860d51 100644
--- a/.github/workflows/test-build-wheel.yaml
+++ b/.github/workflows/test-build-wheel.yaml
@@ -132,7 +132,7 @@ jobs:
           export PATH=/c/hostedtoolcache/windows/Python/3.9.13/x64/bin:$PATH
           export PATH=/c/hostedtoolcache/windows/Python/3.10.11/x64/bin:$PATH
           export PATH=/c/hostedtoolcache/windows/Python/3.11.9/x64/bin:$PATH
-          export PATH=/c/hostedtoolcache/windows/Python/3.12.3/x64/bin:$PATH
+          export PATH=/c/hostedtoolcache/windows/Python/3.12.4/x64/bin:$PATH
 
           which sherpa-onnx
           sherpa-onnx --help
diff --git a/.github/workflows/test-pip-install.yaml b/.github/workflows/test-pip-install.yaml
index 998469cef..4032e8d24 100644
--- a/.github/workflows/test-pip-install.yaml
+++ b/.github/workflows/test-pip-install.yaml
@@ -107,7 +107,7 @@ jobs:
           export PATH=/c/hostedtoolcache/windows/Python/3.9.13/x64/bin:$PATH
           export PATH=/c/hostedtoolcache/windows/Python/3.10.11/x64/bin:$PATH
           export PATH=/c/hostedtoolcache/windows/Python/3.11.9/x64/bin:$PATH
-          export PATH=/c/hostedtoolcache/windows/Python/3.12.3/x64/bin:$PATH
+          export PATH=/c/hostedtoolcache/windows/Python/3.12.4/x64/bin:$PATH
 
           sherpa-onnx --help
           sherpa-onnx-keyword-spotter --help
diff --git a/scripts/wenet/test-onnx-streaming.py b/scripts/wenet/test-onnx-streaming.py
index cbf27b745..4730df0f4 100755
--- a/scripts/wenet/test-onnx-streaming.py
+++ b/scripts/wenet/test-onnx-streaming.py
@@ -143,7 +143,7 @@ def main():
         (model.chunk_size - 1) * model.subsampling_factor + model.right_context + 1
     )
     chunk_length = int(chunk_length)
-    chunk_shift = int(model.required_cache_size)
+    chunk_shift = int(model.chunk_size * model.subsampling_factor)
     print(chunk_length, chunk_shift)
 
     num_frames = x.shape[0]
diff --git a/sherpa-onnx/csrc/online-wenet-ctc-model.cc b/sherpa-onnx/csrc/online-wenet-ctc-model.cc
index 50a7a10aa..793d4eb0c 100644
--- a/sherpa-onnx/csrc/online-wenet-ctc-model.cc
+++ b/sherpa-onnx/csrc/online-wenet-ctc-model.cc
@@ -97,7 +97,9 @@ class OnlineWenetCtcModel::Impl {
            right_context_ + 1;
   }
 
-  int32_t ChunkShift() const { return required_cache_size_; }
+  int32_t ChunkShift() const {
+    return config_.wenet_ctc.chunk_size * subsampling_factor_;
+  }
 
   OrtAllocator *Allocator() const { return allocator_; }