diff --git a/.github/workflows/docs.yaml b/.github/workflows/docs.yaml
index 9a3cafa..fb46a4e 100644
--- a/.github/workflows/docs.yaml
+++ b/.github/workflows/docs.yaml
@@ -28,6 +28,7 @@ jobs:
             Pkg.develop(Pkg.PackageSpec(path=pwd()))
             Pkg.instantiate()
             Pkg.add("Diversity")
+            Pkg.add("Phylo")
             Pkg.add("Documenter")
         shell: julia --project=docs/ --color=yes {0}
       - name: Build and deploy