diff --git a/pyatmos/__init__.py b/pyatmos/__init__.py
index 3724ef3..45a9379 100644
--- a/pyatmos/__init__.py
+++ b/pyatmos/__init__.py
@@ -14,4 +14,8 @@ from .msise.spaceweather import download_sw_nrlmsise00,read_sw_nrlmsise00
 from .jb2008.spaceweather import download_sw_jb2008,read_sw_jb2008
 
 from .msise.nrlmsise00 import nrlmsise00
-from .jb2008.jb2008 import jb2008
\ No newline at end of file
+from .jb2008.jb2008 import jb2008
+from .utils import data_prepare
+
+# Load and update the EOP file and Leap Second file
+data_prepare.iers_load() 
\ No newline at end of file