diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index bd7da3a804634..4a2c412d2d98e 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -117,7 +117,6 @@ jobs:
       TEST_ARGS: ${{ matrix.test_args || '' }}
       PYTEST_WORKERS: ${{ matrix.pytest_workers || 'auto' }}
       PYTEST_TARGET: ${{ matrix.pytest_target || 'pandas' }}
-      NPY_PROMOTION_STATE: ${{ matrix.env_file == 'actions-311-numpydev.yaml' && 'weak' || 'legacy' }}
       # Clipboard tests
       QT_QPA_PLATFORM: offscreen
       REMOVE_PYARROW: ${{ matrix.name == 'Future infer strings (without pyarrow)' && '1' || '0' }}
diff --git a/ci/deps/actions-311-pyarrownightly.yaml b/ci/deps/actions-311-pyarrownightly.yaml
index b90fa2e044cd6..978611b3fa96f 100644
--- a/ci/deps/actions-311-pyarrownightly.yaml
+++ b/ci/deps/actions-311-pyarrownightly.yaml
@@ -18,7 +18,7 @@ dependencies:
 
   # required dependencies
   - python-dateutil
-  - numpy<2
+  - numpy
   # pytz 2024.2 timezones cause wrong results
   - pytz<2024.2
   - pip