diff --git a/.github/workflows/build-aarch64.yml b/.github/workflows/build-aarch64.yml
index c309f1bab..16485cad5 100644
--- a/.github/workflows/build-aarch64.yml
+++ b/.github/workflows/build-aarch64.yml
@@ -38,7 +38,7 @@ jobs:
         python3 -m venv venv
         source venv/bin/activate
         python -m pip install --upgrade pip
-        python -m pip install cibuildwheel==2.2.2
+        python -m pip install cibuildwheel==2.3.1
 
     - name: Lint source with flake8
       run: |
diff --git a/.github/workflows/build-wheels.yml b/.github/workflows/build-wheels.yml
index 9512680ca..36bd409eb 100644
--- a/.github/workflows/build-wheels.yml
+++ b/.github/workflows/build-wheels.yml
@@ -54,7 +54,7 @@ jobs:
         python -m build --sdist --outdir dist .
 
     - name: Build ${{ matrix.os }} wheels and test
-      uses: joerick/cibuildwheel@v2.2.2
+      uses: joerick/cibuildwheel@v2.3.1
       with:
         output-dir: dist
       env:
diff --git a/setup.py b/setup.py
index 1b0d7b2b1..4d2482b9d 100644
--- a/setup.py
+++ b/setup.py
@@ -176,7 +176,7 @@ def build_extensions(self):
                 opts.append("-fvisibility=hidden")
         elif ct == "msvc":
             if sys.version_info < (3, 9):
-                ver_flag = '/DVERSION_INFO=\\"%s\\"'
+                ver_flag = '/DVERSION_INFO=\"%s\"'
             else:
                 ver_flag = '-DVERSION_INFO="%s"'
             opts.append(ver_flag % self.distribution.get_version())