diff --git a/tests/sanity/test_kubectl.py b/tests/sanity/test_kubectl.py
index 76aefec..42613e3 100644
--- a/tests/sanity/test_kubectl.py
+++ b/tests/sanity/test_kubectl.py
@@ -15,6 +15,6 @@ def test_kubectl_rock():
     assert image is not None, f"${image_variable} is not set"
 
     # check binary name and version.
-    process = docker_util.run_in_docker(image, False, "kubectl", "version")
+    process = docker_util.run_in_docker(image, ["kubectl", "version"], False)
 
     assert "Client Version: v1.30" in process.stdout
diff --git a/tests/sanity/test_velero.py b/tests/sanity/test_velero.py
index 5f66bd0..4383909 100644
--- a/tests/sanity/test_velero.py
+++ b/tests/sanity/test_velero.py
@@ -15,15 +15,15 @@ def test_velero_rock():
     assert image is not None, f"${image_variable} is not set"
 
     # check binary name and version.
-    process = docker_util.run_in_docker(image, False, "/velero", "version")
+    process = docker_util.run_in_docker(image, ["/velero", "version"], False)
     expected_err = "error finding Kubernetes API server config in --kubeconfig"
     assert expected_err in process.stderr
 
     # check helper binary.
-    process = docker_util.run_in_docker(image, False, "/velero-helper")
+    process = docker_util.run_in_docker(image, ["/velero-helper"], False)
     expected_err = "at least one argument must be provided, the working mode"
     assert expected_err in process.stderr
 
     # check restic and its version.
-    process = docker_util.run_in_docker(image, True, "restic", "version")
+    process = docker_util.run_in_docker(image, ["restic", "version"])
     assert "restic" in process.stdout and "0.15.0" in process.stdout