diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 37a4ab39ac..1371667d10 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -84,6 +84,8 @@ jobs:
             --install defcon \
             --install gadopt \
             --install asQ \
+            --package-branch tsfc ksagiyam/introduce_mixed_map \
+            --package-branch ufl ksagiyam/introduce_mixed_map \
             || (cat firedrake-install.log && /bin/false)
       - name: Install test dependencies
         run: |