diff --git a/.github/workflows/python-dev.yml b/.github/workflows/python-dev.yml
index 2639aa26b6eed..41e1a7c86d392 100644
--- a/.github/workflows/python-dev.yml
+++ b/.github/workflows/python-dev.yml
@@ -49,7 +49,8 @@ jobs:
       shell: bash
       run: |
         python -m pip install --upgrade pip setuptools wheel
-        pip install -i https://pypi.anaconda.org/scipy-wheels-nightly/simple numpy
+        # TODO: unpin
+        pip install -i https://pypi.anaconda.org/scipy-wheels-nightly/simple "numpy==1.23.0.dev0+101.ga81535a36"
         pip install git+https://github.com/nedbat/coveragepy.git
         pip install cython python-dateutil pytz hypothesis pytest>=6.2.5 pytest-xdist pytest-cov pytest-timeout
         pip list
diff --git a/ci/deps/actions-39-numpydev.yaml b/ci/deps/actions-39-numpydev.yaml
index 4b8c74d635323..48c03399d5fa8 100644
--- a/ci/deps/actions-39-numpydev.yaml
+++ b/ci/deps/actions-39-numpydev.yaml
@@ -19,5 +19,6 @@ dependencies:
     - cython==0.29.24 # GH#34014
     - "--extra-index-url https://pypi.anaconda.org/scipy-wheels-nightly/simple"
     - "--pre"
-    - "numpy"
+    # TODO: Unpin
+    - "numpy==1.23.0.dev0+101.ga81535a36"
     - "scipy"