diff --git a/.github/workflows/ontology-bump-dry-run.yml b/.github/workflows/ontology-bump-dry-run.yml
index 9684115c..04f328b6 100644
--- a/.github/workflows/ontology-bump-dry-run.yml
+++ b/.github/workflows/ontology-bump-dry-run.yml
@@ -26,7 +26,7 @@ jobs:
             ${{ runner.os }}-pip-
       - name: Install dependencies
         run: |
-          pip install -r scripts/schema_bump_dry_run_ontologies/requirements.txt
+          pip install --extra-index-url https://test.pypi.org/simple/ -r scripts/schema_bump_dry_run_ontologies/requirements.txt
       - name: Configure AWS Credentials
         uses: aws-actions/configure-aws-credentials@v4
         with:
diff --git a/.github/workflows/push_tests.yml b/.github/workflows/push_tests.yml
index cd5577d4..f804e123 100644
--- a/.github/workflows/push_tests.yml
+++ b/.github/workflows/push_tests.yml
@@ -50,7 +50,7 @@ jobs:
       - name: Install dependencies
         run: |
           pip install -r ./requirements-dev.txt
-          pip install -e ./cellxgene_schema_cli
+          pip install -e --extra-index-url https://test.pypi.org/simple/./cellxgene_schema_cli
       - name: cellxgene_schema_cli Unit tests
         run: make unit-test
       - name: Upload coverage results as an artifact
@@ -111,7 +111,7 @@ jobs:
             ${{ runner.os }}-pip-
       - name: Install dependencies
         run: |
-          pip install -r scripts/schema_bump_dry_run_ontologies/requirements.txt
+          pip install -r --extra-index-url https://test.pypi.org/simple/ scripts/schema_bump_dry_run_ontologies/requirements.txt
           pip install -r ./requirements-dev.txt
       - name: Ontology Dry Run Unit Tests
         run: make ontology-dry-run-tests
diff --git a/cellxgene_schema_cli/requirements.txt b/cellxgene_schema_cli/requirements.txt
index a060e5f0..c6ee61e6 100644
--- a/cellxgene_schema_cli/requirements.txt
+++ b/cellxgene_schema_cli/requirements.txt
@@ -1,5 +1,5 @@
 anndata>=0.8,<0.12
-cellxgene-ontology-guide==1.0.0 # update before a schema migration
+cellxgene-ontology-guide==1.2.0rc0 # update before a schema migration
 click<9
 Cython<4
 numpy<2
diff --git a/scripts/schema_bump_dry_run_ontologies/requirements.txt b/scripts/schema_bump_dry_run_ontologies/requirements.txt
index da32211c..04ff1228 100644
--- a/scripts/schema_bump_dry_run_ontologies/requirements.txt
+++ b/scripts/schema_bump_dry_run_ontologies/requirements.txt
@@ -1,2 +1,2 @@
 requests<3
-git+https://github.com/chanzuckerberg/cellxgene-ontology-guide/@nayib/bump-ontologies#subdirectory=api/python
+cellxgene-ontology-guide==1.2.0rc0