diff --git a/.github/workflows/test-workflow.yml b/.github/workflows/test-workflow.yml
index a313e9f6b89df5423a68afe9dd3c4b4e8d30c8f0..2e9454475285dde6262e3c1a188706163a76f8e0 100644
--- a/.github/workflows/test-workflow.yml
+++ b/.github/workflows/test-workflow.yml
@@ -24,6 +24,7 @@ jobs:
         sudo apt-get install -y libsox-dev
         python -m pip install --upgrade pip
         python -m pip install torch torchaudio --index-url https://download.pytorch.org/whl/cpu
+        python -m pip install matplotlib
         python -m pip install pytest
         python -m pip install .
     - name: Test with pytest
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 095e497e66f0308df45f7b6fda1401639d005036..ef40055cf51781976bb5f07757cbf48406ecde78 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -5,7 +5,6 @@ import os
 import pytest
 
 import torch
-import torchaudio
 
 
 AUDIOS_DIR = os.path.join(os.path.dirname(__file__), "audios")