diff --git a/.github/workflows/python-test.yml b/.github/workflows/python-test.yml
index 61905bbd..802028c4 100644
--- a/.github/workflows/python-test.yml
+++ b/.github/workflows/python-test.yml
@@ -54,7 +54,7 @@ jobs:
 
     - uses: actions/upload-artifact@master
       with:
-        name: coverage-data
+        name: coverage-data-${{ matrix.python-version }}
         path: .coverage-data/
 
   coverage:
@@ -64,8 +64,9 @@ jobs:
     - uses: actions/checkout@v3
     - uses: actions/download-artifact@master
       with:
-        name: coverage-data
+        pattern: coverage-data-*
         path: .
+        merge-multiple: true
 
     - name: Set up Python 3.10
       uses: actions/setup-python@v4
diff --git a/pyproject.toml b/pyproject.toml
index d083849f..3d61200a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ requires = ["setuptools>=40.6.0", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [tool.coverage.paths]
-source = ["src", ".tox/*/site-packages"]
+source = ["src", ".tox/**/site-packages"]
 
 [tool.isort]
 line_length = 88
diff --git a/src/commercetools/testing/product_projections.py b/src/commercetools/testing/product_projections.py
index 2105da1f..166ec135 100644
--- a/src/commercetools/testing/product_projections.py
+++ b/src/commercetools/testing/product_projections.py
@@ -6,7 +6,10 @@
     ProductProjectionSchema,
     ProductSchema,
 )
-from commercetools.services.product_projections import _ProductProjectionQuerySchema
+from commercetools.services.product_projections import (
+    _ProductProjectionQuerySchema,
+    _ProductProjectionSearchSchema,
+)
 from commercetools.testing import utils
 from commercetools.testing.abstract import ServiceBackend
 from commercetools.testing.utils import create_commercetools_response
@@ -19,6 +22,7 @@ class ProductProjectionsBackend(ServiceBackend):
     def urls(self):
         return [
             ("^$", "GET", self.query),
+            ("^search", "GET", self.search),
             ("^search", "POST", self.search),
             ("^key=(?P<key>[^/]+)$", "GET", self.get_by_key),
             ("^(?P<id>[^/]+)$", "GET", self.get_by_id),
@@ -53,7 +57,7 @@ def query(self, request):
         return create_commercetools_response(request, text=content)
 
     def search(self, request):
-        params = utils.parse_request_params(_ProductProjectionQuerySchema, request)
+        params = utils.parse_request_params(_ProductProjectionSearchSchema, request)
 
         limit = params.get("limit")