diff --git a/.github/workflows/emscripten.yml b/.github/workflows/emscripten.yml
index f9d29326..422f1326 100644
--- a/.github/workflows/emscripten.yml
+++ b/.github/workflows/emscripten.yml
@@ -46,11 +46,9 @@ jobs:
           persist-credentials: false
 
       - name: Build and test PyWavelets
-        uses: pypa/cibuildwheel@b9e566a2b284570af229f6c2a33673410d0389a3 # v4.3.4
+        uses: pypa/cibuildwheel@f9b966cfadf4109556cadc5bb39ddb72d0ce664e # v4.3.5
         env:
           CIBW_PLATFORM: pyodide
-          CIBW_TEST_REQUIRES: pytest matplotlib
-          CIBW_TEST_COMMAND: python -c "import pywt; pywt.test(extra_argv=['-m', 'not slow'])"
 
         # https://anaconda.org/scientific-python-nightly-wheels/pywavelets
         # WARNING: this job will overwrite existing wheels.
diff --git a/.github/workflows/wheel_tests_and_release.yml b/.github/workflows/wheel_tests_and_release.yml
index f068ec74..1ef4808c 100644
--- a/.github/workflows/wheel_tests_and_release.yml
+++ b/.github/workflows/wheel_tests_and_release.yml
@@ -60,7 +60,7 @@ jobs:
           python-version: "3.12"
 
       - name: Build the wheel
-        uses: pypa/cibuildwheel@b9e566a2b284570af229f6c2a33673410d0389a3 # v4.3.4
+        uses: pypa/cibuildwheel@f9b966cfadf4109556cadc5bb39ddb72d0ce664e # v4.3.5
         with:
           output-dir: dist
         env:
@@ -92,7 +92,7 @@ jobs:
           python-version: "3.12"
 
       - name: Build the wheel
-        uses: pypa/cibuildwheel@b9e566a2b284570af229f6c2a33673410d0389a3 # v4.3.4
+        uses: pypa/cibuildwheel@f9b966cfadf4109556cadc5bb39ddb72d0ce664e # v4.3.5
         with:
           output-dir: dist
         env:
@@ -130,7 +130,7 @@ jobs:
 
       - name: Build wheels for CPython (macOS) (x86_64)
         if: matrix.cibw_arch == 'x86_64'
-        uses: pypa/cibuildwheel@b9e566a2b284570af229f6c2a33673410d0389a3 # v4.3.4
+        uses: pypa/cibuildwheel@f9b966cfadf4109556cadc5bb39ddb72d0ce664e # v4.3.5
         with:
           output-dir: dist
         env:
@@ -139,7 +139,7 @@ jobs:
 
       - name: Build wheels for CPython (macOS) (arm64)
         if: matrix.cibw_arch == 'arm64'
-        uses: pypa/cibuildwheel@b9e566a2b284570af229f6c2a33673410d0389a3 # v4.3.4
+        uses: pypa/cibuildwheel@f9b966cfadf4109556cadc5bb39ddb72d0ce664e # v4.3.5
         with:
           output-dir: dist
         env:
@@ -198,7 +198,7 @@ jobs:
           architecture: arm64
 
       - name: Build Windows wheels for CPython
-        uses: pypa/cibuildwheel@b9e566a2b284570af229f6c2a33673410d0389a3 # v4.3.4
+        uses: pypa/cibuildwheel@f9b966cfadf4109556cadc5bb39ddb72d0ce664e # v4.3.5
         with:
           output-dir: dist
         env:
diff --git a/pyproject.toml b/pyproject.toml
index 496b9ac5..a7965ff3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,6 +54,15 @@ documentation = "https://pywavelets.readthedocs.io/"
 config-settings = {setup-args = ["--vsenv"]}
 before-build = "bash {project}/util/cibw_before_build_win.sh"
 
+[tool.cibuildwheel.pyodide]
+test-requires = ["pytest", "matplotlib"]
+test-command = '''python -c "import pywt; pywt.test(extra_argv=['-m', 'not slow'])"'''
+
+[[tool.cibuildwheel.overrides]]
+# matplotlib is not available for cp315 on Pyodide yet
+select = "cp315-pyodide_wasm32"
+test-requires = ["pytest"]
+
 
 [tool.ruff]
 line-length = 88