diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 0dd8990..e097f07 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -4,7 +4,7 @@ env:
   # A tag or branch name or a commit hash for the numpy/numpy 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: v2.3.3
+  SOURCE_REF_TO_BUILD: maintenance/2.3.x
 
 on:
   schedule:
@@ -147,7 +147,7 @@ jobs:
           echo "CIBW_PLATFORM=pyodide" >> "$GITHUB_ENV"
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@c923d83ad9c1bc00211c5041d0c3f73294ff88f6 # v3.1.4
+        uses: pypa/cibuildwheel@9c00cb4f6b517705a3794b22395aedc36257242c  # v3.2.1
         env:
           CIBW_BUILD: ${{ matrix.python }}-${{ matrix.buildplat[1] }}
           SRC: ${{ github.workspace }}/numpy-src