diff --git a/experimenter/tests/integration/nimbus/conftest.py b/experimenter/tests/integration/nimbus/conftest.py
index bdb9fc39ad..08b707b645 100755
--- a/experimenter/tests/integration/nimbus/conftest.py
+++ b/experimenter/tests/integration/nimbus/conftest.py
@@ -55,6 +55,7 @@ def pytest_addoption(parser):
 
 
 KINTO_DRIVING_FIXTURES = frozenset({"kinto_client", "live_rollout"})
+TEARDOWN_APPROVAL_RETRIES = 15
 
 
 @pytest.hookimpl(tryfirst=True)
@@ -172,7 +173,7 @@ def selenium(selenium, experiment_slug, kinto_client):
     try:
         if not helpers.is_rollout(experiment_slug):
             helpers.end_experiment(experiment_slug)
-            kinto_client.approve()
+            kinto_client().approve(retries=TEARDOWN_APPROVAL_RETRIES)
     except Exception:
         pass
 
diff --git a/experimenter/tests/integration/nimbus/kinto/client.py b/experimenter/tests/integration/nimbus/kinto/client.py
index b3db887118..9fd7ae2d97 100755
--- a/experimenter/tests/integration/nimbus/kinto/client.py
+++ b/experimenter/tests/integration/nimbus/kinto/client.py
@@ -33,8 +33,8 @@ def _fetch_collection_data(self):
     def _has_pending_review(self):
         return self._fetch_collection_data()["status"] == KINTO_REVIEW_STATUS
 
-    def approve(self):
-        for _ in range(self.RETRIES):
+    def approve(self, retries=RETRIES):
+        for _ in range(retries):
             if self._has_pending_review():
                 try:
                     self.kinto_http_client.patch_collection(