diff --git a/.github/workflows/python-package-daily.yml b/.github/workflows/python-package-daily.yml
index a94a13a8..bd279d75 100644
--- a/.github/workflows/python-package-daily.yml
+++ b/.github/workflows/python-package-daily.yml
@@ -30,12 +30,6 @@ jobs:
       run: |
         python -m pip install --upgrade pip setuptools
         python -m pip install -e '.[testing]'
-    - name: Install multicorn2
-      run: |
-        git clone https://github.com/pgsql-io/multicorn2.git
-        cd multicorn2
-        git checkout v2.5
-        pip install -e '.[testing]'
     - name: Test with pytest
       run: |
         pytest --cov-fail-under=100 --cov=src/shillelagh -vv tests/ --doctest-modules src/shillelagh --without-integration --without-slow-integration
diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 7e866a4d..4f008d91 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -31,12 +31,6 @@ jobs:
       run: |
         python -m pip install --upgrade pip setuptools
         python -m pip install -r requirements/test.txt
-    - name: Install multicorn2
-      run: |
-        git clone https://github.com/pgsql-io/multicorn2.git
-        cd multicorn2
-        git checkout v2.5
-        pip install -r requirements/test.txt
     - name: Test with pytest
       run: |
         pre-commit run --all-files