diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4a98d1f74..4e31e3592 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -57,6 +57,7 @@ jobs:
         run: |
           sudo apt-get install graphviz graphviz-dev
           pip install -e .[test]
+          pip install git+https://github.com/zaxtax/pytensor.git@blockwise_scan_hack --force-reinstall
           pytest ${{ matrix.split }}
       - name: Check oldest version of PyMC
         if: ${{ matrix.config.oldest-pymc }}
@@ -89,6 +90,7 @@ jobs:
         run: |
           sudo apt-get install graphviz graphviz-dev
           pip install -e .[test]
+          pip install git+https://github.com/zaxtax/pytensor.git@blockwise_scan_hack --force-reinstall
           pytest --only-slow ${{ matrix.split }}
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5
diff --git a/.github/workflows/test_notebook.yml b/.github/workflows/test_notebook.yml
index a6359917a..50d022694 100644
--- a/.github/workflows/test_notebook.yml
+++ b/.github/workflows/test_notebook.yml
@@ -35,5 +35,6 @@ jobs:
       run: |
         sudo apt-get install graphviz graphviz-dev
         pip install -e .[docs,test,dag]
+        pip install git+https://github.com/zaxtax/pytensor.git@blockwise_scan_hack --force-reinstall
     - name: Run notebooks
       run: make run_notebooks
diff --git a/pyproject.toml b/pyproject.toml
index 413e09aa5..a5c4e5fce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,7 +31,7 @@ dependencies = [
     "pandas",
     "pydantic>=2.1.0",
     # NOTE: Used as minimum pymc version with test.yml `OLDEST_PYMC_VERSION`
-    "pymc>=5.22.0,<5.23.0",
+    "pymc>=5.22.0",
     "pytensor>=2.30.3",
     "scikit-learn>=1.1.1",
     "seaborn>=0.12.2",