diff --git a/.circleci/scripts/run_integration.sh b/.circleci/scripts/run_integration.sh
index 57863c62a52..f12b5f48fc0 100644
--- a/.circleci/scripts/run_integration.sh
+++ b/.circleci/scripts/run_integration.sh
@@ -14,7 +14,7 @@ guard6_installed=false
 cleanup() {
   original_status=$?
   trap - EXIT INT TERM
-  .venv/bin/python .circleci/scripts/stop_integration_processes.py "$integration_identity" \
+  sudo .venv/bin/python .circleci/scripts/stop_integration_processes.py "$integration_identity" "$(id -u)" \
     > "$results/process-cleanup.txt" 2>&1 || original_status=1
   for owned_pid in "$proxy_pid" "$upstream_pid"; do
     if [ -n "$owned_pid" ]; then
@@ -128,7 +128,8 @@ with httpx.Client(trust_env=False, timeout=2) as client:
 PY
 
 if [ "$suite" = providers ]; then
-  INTEGRATION_RUN_ID="$integration_identity" .venv/bin/python -m pytest --noconftest -p no:pytest-retry -p no:rerunfailures --timeout=30 \
+  INTEGRATION_RUN_ID="$integration_identity" .venv/bin/python -m pytest --noconftest -o addopts= \
+    --strict-markers --strict-config -p no:pytest-retry -p no:rerunfailures --timeout=30 \
     tests/e2e/test_provider_edge.py::TestReplayMode::test_content_drift_returns_the_miss_status_naming_both_keys \
     tests/e2e/test_provider_edge.py::TestReplayMode::test_exhausted_key_returns_the_miss_status \
     tests/e2e/test_provider_edge.py::TestReplayLeftover::test_partially_consumed_recording_names_the_leftover \
diff --git a/.circleci/scripts/stop_integration_processes.py b/.circleci/scripts/stop_integration_processes.py
index ff4d53b9aaa..179a13fcaac 100644
--- a/.circleci/scripts/stop_integration_processes.py
+++ b/.circleci/scripts/stop_integration_processes.py
@@ -1,14 +1,13 @@
-import os
 import sys
 from typing import Final
 
 import psutil
 
 
-def owned_processes(identity: str) -> tuple[psutil.Process, ...]:
+def owned_processes(identity: str, owner_uid: int) -> tuple[psutil.Process, ...]:
     owned: Final[list[psutil.Process]] = []
     for process in psutil.process_iter(["uids"]):
-        if process.info["uids"].real != os.getuid():
+        if process.info["uids"].real != owner_uid:
             continue
         try:
             if process.environ().get("INTEGRATION_RUN_ID") == identity:
@@ -18,25 +17,26 @@ def owned_processes(identity: str) -> tuple[psutil.Process, ...]:
     return tuple(owned)
 
 
-def main(identity: str) -> int:
-    owned: Final = owned_processes(identity)
+def main(identity: str, owner_uid: int) -> int:
+    assert owner_uid > 0, "The integration process owner must be a non-root UID"
+    owned: Final = owned_processes(identity, owner_uid)
     for process in owned:
         try:
             process.terminate()
         except psutil.NoSuchProcess:
             continue
     psutil.wait_procs(owned, timeout=8)
-    remaining: Final = owned_processes(identity)
+    remaining: Final = owned_processes(identity, owner_uid)
     for process in remaining:
         try:
             process.kill()
         except psutil.NoSuchProcess:
             continue
     psutil.wait_procs(remaining, timeout=2)
-    survivors: Final = owned_processes(identity)
+    survivors: Final = owned_processes(identity, owner_uid)
     print(f"Owned integration processes: {len(owned)}, forced: {len(remaining)}, remaining: {len(survivors)}")
     return 1 if remaining or survivors else 0
 
 
 if __name__ == "__main__":
-    raise SystemExit(main(sys.argv[1]))
+    raise SystemExit(main(sys.argv[1], int(sys.argv[2])))