diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index bb25988..803310b 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -5,7 +5,7 @@ env:
   # A tag or branch name or a commit hash for the matplotlib/matplotlib repo, for which
   # to build wheels. This is normally set to `main` in the main branch of this
   # repo, and to a tag name (e.g., `v2.3.2`) on a release branch.
-  SOURCE_REF_TO_BUILD: main
+  SOURCE_REF_TO_BUILD: v3.11.2
 
 
 on:
@@ -63,7 +63,7 @@ jobs:
       - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97  # v7.0.0
         name: Install Python
         with:
-          python-version: '3.12'
+          python-version: '3.11'
 
       - name: Install dependencies
         run: python -m pip install build twine
@@ -201,6 +201,24 @@ jobs:
           CIBW_BUILD: "cp312-*"
           CIBW_ARCHS: ${{ matrix.cibw_archs }}
 
+      - name: Build wheels for CPython 3.11
+        uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          package-dir: dist/${{ needs.build_sdist.outputs.SDIST_NAME }}
+        env:
+          CIBW_BUILD: "cp311-*"
+          CIBW_ARCHS: ${{ matrix.cibw_archs }}
+
+      - name: Build wheels for PyPy
+        uses: pypa/cibuildwheel@1828c10ab37f080699c7b81cea34097c684a7074  # v4.2.0
+        with:
+          package-dir: dist/${{ needs.build_sdist.outputs.SDIST_NAME }}
+        env:
+          CIBW_BUILD: "pp311-*"
+          CIBW_ARCHS: ${{ matrix.cibw_archs }}
+          CIBW_ENABLE: pypy
+        if: matrix.cibw_archs != 'aarch64' && matrix.os != 'windows-latest' && matrix.os != 'windows-11-arm'
+
       - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
         with:
           name: cibw-wheels-${{ runner.os }}-${{ matrix.cibw_archs }}