diff --git a/orekit_jpype/_pyinstaller/orekit_data_load_example.py b/orekit_jpype/_pyinstaller/orekit_data_load_example.py
index c98716b560db5a07170096e00367ee221af6bf3c..5a61fe52cc8d5d461c16a1f1eb916f486ab826cd 100644
--- a/orekit_jpype/_pyinstaller/orekit_data_load_example.py
+++ b/orekit_jpype/_pyinstaller/orekit_data_load_example.py
@@ -1,8 +1,10 @@
 import orekit_jpype as orekit
-from orekit_jpype.pyhelpers import setup_orekit_data
 orekit.initVM()
 
+from orekit_jpype.pyhelpers import setup_orekit_data
 setup_orekit_data(from_pip_library=True)
 
-from org.orekit.utils import Constants  # noqa: E402
-assert Constants.WGS84_EARTH_EQUATORIAL_RADIUS == 6378137.0
+from org.orekit.time import TimeScalesFactory  # noqa: E402
+utc = TimeScalesFactory.getUTC()
+last_leap_second = utc.getLastKnownLeapSecond()
+assert last_leap_second.getComponents(utc).getDate().getYear() >= 2016