diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 14c24446..0bfdb51e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -57,8 +57,10 @@ jobs:
       - run: cat Manifest.toml
       - run: |
           julia --color=yes --math-mode=ieee --check-bounds=yes -tauto --project=. -e '
-            push!(LOAD_PATH, joinpath(pwd(), "lib", "XSPECModel"))
             import Pkg
+            push!(LOAD_PATH, joinpath(pwd(), "lib", "XSPECModels"))
+            Pkg.develop(Pkg.PackageSpec(path=pwd()))
+            Pkg.develop(Pkg.PackageSpec(path=joinpath(pwd(), "lib", "XSPECModels")))
             Pkg.test(; coverage=true, force_latest_compatible_version=true)
           '
         env: