diff --git a/.github/workflows/pnnx.yml b/.github/workflows/pnnx.yml
index 988e2e937..5e71d38fe 100644
--- a/.github/workflows/pnnx.yml
+++ b/.github/workflows/pnnx.yml
@@ -233,20 +233,20 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - { python: '3.8',  numpy: '1.24.4', torch: '1.8.1',  torchvision: '0.9.1',  torchaudio: '0.8.1'      }
-          - { python: '3.8',  numpy: '1.24.4', torch: '1.9.1',  torchvision: '0.10.1', torchaudio: '0.9.1'      }
-          - { python: '3.8',  numpy: '1.24.4', torch: '1.10.0', torchvision: '0.11.1', torchaudio: '0.10.0+cpu' }
-          - { python: '3.9',  numpy: '1.26.4', torch: '1.11.0', torchvision: '0.12.0', torchaudio: '0.11.0+cpu' }
-          - { python: '3.9',  numpy: '1.26.4', torch: '1.12.0', torchvision: '0.13.0', torchaudio: '0.12.0+cpu' }
-          - { python: '3.10', numpy: '1.26.4', torch: '1.13.0', torchvision: '0.14.0', torchaudio: '0.13.0+cpu' }
-          - { python: '3.10', numpy: '1.26.4', torch: '2.0.0',  torchvision: '0.15.1', torchaudio: '2.0.0+cpu'  }
-          - { python: '3.10', numpy: '1.26.4', torch: '2.1.0',  torchvision: '0.16.0', torchaudio: '2.1.0+cpu'  }
-          - { python: '3.11', numpy: '1.26.4', torch: '2.2.1',  torchvision: '0.17.1', torchaudio: '2.2.1+cpu'  }
-          - { python: '3.11', numpy: '1.26.4', torch: '2.3.0',  torchvision: '0.18.0', torchaudio: '2.3.0+cpu'  }
-          - { python: '3.11', numpy: '2.2.5',  torch: '2.4.0',  torchvision: '0.19.0', torchaudio: '2.4.0+cpu'  }
-          - { python: '3.12', numpy: '2.2.5',  torch: '2.5.0',  torchvision: '0.20.0', torchaudio: '2.5.0+cpu'  }
-          - { python: '3.12', numpy: '2.2.5',  torch: '2.6.0',  torchvision: '0.21.0', torchaudio: '2.6.0+cpu'  }
-          - { python: '3.12', numpy: '2.2.5',  torch: '2.7.0',  torchvision: '0.22.0', torchaudio: '2.7.0+cpu'  }
+          - { python: '3.8',  numpy: '1.24.4', opencv: '4.5.*',  torch: '1.8.1',  torchvision: '0.9.1',  torchaudio: '0.8.1'      }
+          - { python: '3.8',  numpy: '1.24.4', opencv: '4.5.*',  torch: '1.9.1',  torchvision: '0.10.1', torchaudio: '0.9.1'      }
+          - { python: '3.8',  numpy: '1.24.4', opencv: '4.6.*',  torch: '1.10.0', torchvision: '0.11.1', torchaudio: '0.10.0+cpu' }
+          - { python: '3.9',  numpy: '1.26.4', opencv: '4.6.*',  torch: '1.11.0', torchvision: '0.12.0', torchaudio: '0.11.0+cpu' }
+          - { python: '3.9',  numpy: '1.26.4', opencv: '4.7.*',  torch: '1.12.0', torchvision: '0.13.0', torchaudio: '0.12.0+cpu' }
+          - { python: '3.10', numpy: '1.26.4', opencv: '4.7.*',  torch: '1.13.0', torchvision: '0.14.0', torchaudio: '0.13.0+cpu' }
+          - { python: '3.10', numpy: '1.26.4', opencv: '4.8.*',  torch: '2.0.0',  torchvision: '0.15.1', torchaudio: '2.0.0+cpu'  }
+          - { python: '3.10', numpy: '1.26.4', opencv: '4.8.*',  torch: '2.1.0',  torchvision: '0.16.0', torchaudio: '2.1.0+cpu'  }
+          - { python: '3.11', numpy: '1.26.4', opencv: '4.9.*',  torch: '2.2.1',  torchvision: '0.17.1', torchaudio: '2.2.1+cpu'  }
+          - { python: '3.11', numpy: '1.26.4', opencv: '4.9.*',  torch: '2.3.0',  torchvision: '0.18.0', torchaudio: '2.3.0+cpu'  }
+          - { python: '3.11', numpy: '2.2.5',  opencv: '4.10.*', torch: '2.4.0',  torchvision: '0.19.0', torchaudio: '2.4.0+cpu'  }
+          - { python: '3.12', numpy: '2.2.5',  opencv: '4.10.*', torch: '2.5.0',  torchvision: '0.20.0', torchaudio: '2.5.0+cpu'  }
+          - { python: '3.12', numpy: '2.2.5',  opencv: '4.11.*', torch: '2.6.0',  torchvision: '0.21.0', torchaudio: '2.6.0+cpu'  }
+          - { python: '3.12', numpy: '2.2.5',  opencv: '4.11.*', torch: '2.7.0',  torchvision: '0.22.0', torchaudio: '2.7.0+cpu'  }
 
     name: test-${{ matrix.torch }}-py${{ matrix.python }}
 
@@ -313,7 +313,7 @@ jobs:
     - name: setup-pytorch
       run: |
         export PATH=${{ env.PYTHONUSERBASE }}/bin:$PATH
-        pip3 install --user pytest wheel twine requests einops numpy==${{ matrix.numpy }}
+        pip3 install --user pytest wheel twine requests einops numpy==${{ matrix.numpy }} opencv-python==${{ matrix.opencv }}
         pip3 install --user torch==${{ matrix.torch }}+cpu torchvision==${{ matrix.torchvision }}+cpu torchaudio==${{ matrix.torchaudio }} --index-url https://download.pytorch.org/whl/cpu
         pip3 install --user onnx onnxscript
         pip3 install --user "transformers<=4.52.1" diffusers