diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1a79936f0a..cf84a18925 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -87,6 +87,7 @@ jobs:
             --install defcon \
             --install gadopt \
             --install asQ \
+            --package-branch ufl knook/fix/complex-division \
             || (cat firedrake-install.log && /bin/false)
 
       - name: Install test dependencies
diff --git a/tests/firedrake/regression/test_constant.py b/tests/firedrake/regression/test_constant.py
index 46b9ab9863..f95e0a3e2d 100644
--- a/tests/firedrake/regression/test_constant.py
+++ b/tests/firedrake/regression/test_constant.py
@@ -45,6 +45,18 @@ def test_constant_cast_to_complex():
     assert complex(c) == val
 
 
+@pytest.mark.skipreal
+def test_constant_complex_division():
+    a = Constant(1.0 + 2.0j)
+    b = Constant(3.0 + 4.0j)
+    expected = complex(a) / complex(b)
+    c = Constant(a / b)
+    assert complex(c) == expected
+    d = Constant(0.0)
+    d.assign(a / b)
+    assert complex(d) == expected
+
+
 def test_indexed_vector_constant_cast_to_float():
     val = [10.0, 20.0]
     c = Constant(val)