diff --git a/tests/test_utils_logcfg.py b/tests/test_utils_logcfg.py
index 452d1d2a7..c9adbb6a4 100644
--- a/tests/test_utils_logcfg.py
+++ b/tests/test_utils_logcfg.py
@@ -5,6 +5,9 @@ import pytest
 import sys
 import os
 import importlib
+import subprocess
+import textwrap
+import tempfile
 sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
 from slic.utils.logcfg import *
 
@@ -43,18 +46,40 @@ def test_custom_levels_are_logged(levelname, logfunc, message, ansi_color, capsy
 
 # Test: setup_import_logging()
 
-def test_import_logging_multiple_modules(capfd):
-    add_log_Level(log, "TRACE", logging.DEBUG - 1, func_name="trace")
-    logcfg("TRACE")
-    setup_import_logging()
+def test_import_logging_once_per_module():
+    # Script to run in isolated subprocess
+    code = textwrap.dedent("""
+        import sys
+        from slic.utils.logcfg import setup_import_logging, add_log_Level, logcfg
+        from logzero import logger as log
+        import logging
 
-    modules_to_test = ["json", "math", "io", "random"]
-    for name in modules_to_test:
-        importlib.reload(__import__(name))
+        add_log_Level(log, "TRACE", logging.DEBUG - 1, func_name="trace")
+        logcfg("TRACE")
+        setup_import_logging()
 
-    out, err = capfd.readouterr()
+        import json
+        import math
+        import io
+        import random
+        import json
+        import math
+        import random
+    """)
 
-    for mod in modules_to_test:
-        assert f"importing: {mod}" in err, f"Missing import log for {mod}"
-        assert err.count(f"importing: {mod}") == 1
+    # Write the script to a temp file and run it
+    with tempfile.NamedTemporaryFile("w", suffix=".py", delete=False) as tmp:
+        tmp.write(code)
+        tmp_path = tmp.name
+
+    result = subprocess.run([sys.executable, tmp_path], capture_output=True, text=True)
+
+    stderr = result.stderr
+
+    # Clean up temp file
+    os.remove(tmp_path)
+
+    # Assert that each module is logged only once
+    for mod in ["json", "math", "io", "random"]:
+        assert stderr.count(f"importing: {mod}") == 1, f"Module '{mod}' logged multiple times"