diff --git a/scripts/pyivastest/IvasBaseClass.py b/scripts/pyivastest/IvasBaseClass.py
index c7c734c5c9733dc64da7b89bc891175d9d384462..75eddb2a8a620fdd28b014d936706056335f450d 100644
--- a/scripts/pyivastest/IvasBaseClass.py
+++ b/scripts/pyivastest/IvasBaseClass.py
@@ -134,15 +134,25 @@ class IvasLogger(logging.Logger):
 
 
 def getIvasLogger(name=None):
+    try:
+        # Python 3.13+
+        acquireLock, releaseLock = logging._prepareFork, logging._afterFork
+    except AttributeError:
+        # Python <= 3.12
+        acquireLock, releaseLock = logging._acquireLock, logging._releaseLock
+
     logging_class = logging.getLoggerClass()
-    logging._acquireLock()
+
+    acquireLock()
+
     try:
         logging.setLoggerClass(IvasLogger)
         logger = logging.getLogger(name)
         logging.setLoggerClass(logging_class)
         return logger
+
     finally:
-        logging._releaseLock()
+        releaseLock()
 
 
 class IvasBaseClass(object):