diff --git a/.github/workflows/pull-request.yaml b/.github/workflows/pull-request.yaml
index e388a733..7475ef48 100644
--- a/.github/workflows/pull-request.yaml
+++ b/.github/workflows/pull-request.yaml
@@ -22,15 +22,15 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3
 
-      - name: Setup packages
-        run: make update-package-versions VERSION=1.2.999
-
       - name: Setup environment
         run: python3.12 -m venv env
 
       - name: Invoke environment
         run: . env/bin/activate
 
+      - name: Setup packages
+        run: make update-package-versions VERSION=1.2.999
+
       - name: Install some stuff
         run: pip install build wheel
 
@@ -43,6 +43,15 @@ jobs:
       - name: Install some stuff
         run: pip install pytest pytest-cov pytest-asyncio pytest-mock testcontainers
 
+      - name: Pre-test test
+        run: python -c 'import trustgraph.base;print(dir(trustgraph.base))'
+
+      - name: Pre-test test 2
+        run: python -c 'import trustgraph.schema;print(dir(trustgraph.schema))'
+
+      - name: Pre-test test 3
+        run: python -c 'import trustgraph.model;print(dir(trustgraph.model))'
+
       - name: Unit tests
         run: python3 -m pytest tests/unit