diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 374cc8f..ccc207e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       fail-fast: False
       matrix:
-        python-version: [ 3.7, 3.8, 3.9, '3.10' ]
+        python-version: [ 3.8, 3.9, '3.10', '3.11' ]
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
@@ -60,22 +60,22 @@ jobs:
         with:
           submodules: true
 
-      - name: Setup Python 3.9
+      - name: Setup Python 3.10
         uses: actions/setup-python@v2
         with:
-          python-version: 3.9
+          python-version: '3.10'
 
       - name: Build wheels
         env:
           # only build CPython-3.6 and later and skip 32-bit builds and skip windows
-          CIBW_BUILD: cp37-* cp38-* cp39-* cp310-*
+          CIBW_BUILD: cp38-* cp39-* cp310-* cp311-*
           CIBW_SKIP: "*-win* *-manylinux_i686 *-musllinux*"
           # use latest build
           CIBW_MANYLINUX_X86_64_IMAGE: danielbok/nlopt_manylinux2014_x86_64:latest
           CIBW_BEFORE_ALL_MACOS: brew install swig
           CIBW_BEFORE_BUILD: pip install numpy
         run: |
-          pip install -U pip cibuildwheel
+          python -m pip install -U pip cibuildwheel
           python -m cibuildwheel --output-dir dist
           ls -R dist
 
@@ -91,7 +91,7 @@ jobs:
     strategy:
       matrix:
         os: [ windows-latest, ubuntu-latest, macos-latest ]
-        python-version: [ 3.7, 3.8, 3.9, '3.10' ]
+        python-version: [ 3.8, 3.9, '3.10', '3.11' ]
 
     steps:
       - name: Checkout repository
@@ -139,10 +139,10 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/')
 
     steps:
-      - name: Setup Python ${{ matrix.python-version }}
+      - name: Setup Python
         uses: actions/setup-python@v2
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: '3.8'
 
       - name: Retrieve packages
         uses: actions/download-artifact@v2
diff --git a/ci/nlopt_manylinux2014_x86_64.Dockerfile b/ci/nlopt_manylinux2014_x86_64.Dockerfile
index f4490a6..fbd4d65 100644
--- a/ci/nlopt_manylinux2014_x86_64.Dockerfile
+++ b/ci/nlopt_manylinux2014_x86_64.Dockerfile
@@ -4,7 +4,7 @@ FROM quay.io/pypa/manylinux2014_x86_64:2023-02-05-56647d4
 
 # add swig
 RUN yum update -y && \
-    curl -L https://sourceforge.net/projects/swig/files/swig/swig-4.0.2/swig-4.0.2.tar.gz/download --output /tmp/swig.tar.gz && \
+    curl -L https://sourceforge.net/projects/swig/files/swig/swig-4.1.1/swig-4.1.1.tar.gz/download --output /tmp/swig.tar.gz && \
     mkdir -p /tmp/swig && \
     tar -xvzf /tmp/swig.tar.gz -C /tmp/swig --strip-components 1 &> /dev/null && \
     pushd /tmp/swig && \
diff --git a/setup.py b/setup.py
index 9318b52..8ab8aca 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
 
 setup(
     version=version,
-    install_requires=["numpy >=1.14"],
+    install_requires=["numpy >=1.18.5"],
     ext_modules=[NLOptBuildExtension("nlopt._nlopt", version)],
     cmdclass={"build_ext": NLOptBuild},
     zip_safe=False,