diff --git a/.github/workflows/cython.yml b/.github/workflows/cython.yml
index c85b83f..dc5a541 100644
--- a/.github/workflows/cython.yml
+++ b/.github/workflows/cython.yml
@@ -26,7 +26,7 @@ jobs:
       matrix:
         os: [ubuntu, windows, macOS]
         backend: [c]
-        python_version: [pypy-3.10-nightly, pypy-3.9-nightly]
+        python_version: [pypy-3.10-nightly, pypy-3.11-nightly]
         extra_cflags: ['', '-DCYTHON_USE_TYPE_SPECS=1']
         include:
           - os: windows
@@ -64,15 +64,15 @@ jobs:
         if : ${{ matrix.os == 'ubuntu' }}
         run: |
           python -m pip install --upgrade pip
-          python -m pip install numpy -Csetup-args="-Dallow-noblas=true"
-          python -m pip install pythran --no-build-isolation
+          # python -m pip install numpy -Csetup-args="-Dallow-noblas=true"
+          # python -m pip install pythran --no-build-isolation
 
       - name: install external dependencies
         if : ${{ matrix.os == 'macos' }}
         run: |
           python -m pip install --upgrade pip
-          python -m pip install numpy -Csetup-args="-Dallow-noblas=true"
-          python -m pip install pythran --no-build-isolation
+          # python -m pip install numpy -Csetup-args="-Dallow-noblas=true"
+          # python -m pip install pythran --no-build-isolation
 
       - name: Enable long paths on Windows
         if: startsWith(runner.os, 'Windows')
diff --git a/.github/workflows/nanobind.yml b/.github/workflows/nanobind.yml
index 6100254..281a34c 100644
--- a/.github/workflows/nanobind.yml
+++ b/.github/workflows/nanobind.yml
@@ -24,10 +24,10 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ['ubuntu-latest', 'ubuntu-latest', 'ubuntu-latest', 'ubuntu-latest']
-        python: ['pypy3.9-nightly', 'pypy3.10-nightly']
+        os: ['ubuntu-latest']
+        python: ['pypy-3.11-nightly', 'pypy-3.10-nightly']
 
-    name: "Python ${{ matrix.python }} / ${{ matrix.os }}"
+    name: "${{ matrix.python }} / ${{ matrix.os }}"
     runs-on: ${{ matrix.os }}
 
     steps:
diff --git a/.github/workflows/numpy.yml b/.github/workflows/numpy.yml
index ec1856e..f7ac8c4 100644
--- a/.github/workflows/numpy.yml
+++ b/.github/workflows/numpy.yml
@@ -28,7 +28,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python_version: [pypy-3.10-nightly]
+        python_version: [pypy-3.11-nightly]
 
     timeout-minutes: 120
 
@@ -69,7 +69,11 @@ jobs:
       run: |
         cd repo
         python -c "import os; print('PKG_CONFIG_PATH', os.environ['PKG_CONFIG_PATH'])"
-        python -m pip install . -v -Csetup-args="--vsenv"
+        # python -m pip install . -v -Csetup-args="--vsenv"
+        # Use a newer cython
+        python -m pip install -r requirements/build_requirements.txt
+        python -m pip install git+https://github.com/cython/cython.git
+        python -m pip install --no-build-isolation . -v -Csetup-args="--vsenv"
 
     - name: Test
       shell: bash
diff --git a/.github/workflows/pybind11.yml b/.github/workflows/pybind11.yml
index 57914a3..1bdc426 100644
--- a/.github/workflows/pybind11.yml
+++ b/.github/workflows/pybind11.yml
@@ -35,7 +35,7 @@ jobs:
         runs-on: [ubuntu-latest, windows-2022, macos-latest]
         python:
         - 'pypy-3.10-nightly'
-        - 'pypy-3.9-nightly'
+        - 'pypy-3.11-nightly'
 
         # Items in here will either be added to the build matrix (if not
         # present), or add new keys to an existing matrix element if all the
diff --git a/.github/workflows/pyo3.yml b/.github/workflows/pyo3.yml
index afc2113..be59570 100644
--- a/.github/workflows/pyo3.yml
+++ b/.github/workflows/pyo3.yml
@@ -25,7 +25,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python_version: [pypy-3.10-nightly, pypy-3.9-nightly]
+        python_version: [pypy-3.10-nightly, pypy-3.11-nightly]
 
     timeout-minutes: 20
 
diff --git a/.github/workflows/pytest-html.yml b/.github/workflows/pytest-html.yml
index bcc6c1c..ed6b75f 100644
--- a/.github/workflows/pytest-html.yml
+++ b/.github/workflows/pytest-html.yml
@@ -36,7 +36,7 @@ jobs:
           - os: windows-latest
             name: pypy3.9-nightly-windows
             toxname: pypy3
-            python-version: pypy-3.9-nightly
+            python-version: pypy-3.11-nightly
 
     steps:
       - name: Set Newline Behavior
diff --git a/.github/workflows/pythran.yml b/.github/workflows/pythran.yml
index 83c4c6e..a8069fb 100644
--- a/.github/workflows/pythran.yml
+++ b/.github/workflows/pythran.yml
@@ -28,8 +28,8 @@ jobs:
         os: [ubuntu-20.04]
         cpp-version: [g++-8, clang-7]
         python_version:
-          - [pypy-3.10-nightly, pypy10]
-          - [pypy-3.9-nightly, pypy39]
+          - [pypy-3.10-nightly, pypy310]
+          - [pypy-3.11-nightly, pypy311]
     steps:
     - uses: actions/setup-python@v5.0.0
       with: