diff --git a/VERSION b/VERSION
index 3b79cbb..3b931e1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.272
+1.0.273
diff --git a/common/create_lef_library.py b/common/create_lef_library.py
index 72a5025..6c9899c 100755
--- a/common/create_lef_library.py
+++ b/common/create_lef_library.py
@@ -13,6 +13,7 @@
 import os
 import glob
 import fnmatch
+from sort_pdkfiles import natural_sort
 
 #----------------------------------------------------------------------------
 
@@ -53,6 +54,7 @@
                 llist.append(destlibdir + '/' + rfile)
     else:
         llist = glob.glob(destlibdir + '/*.lef')
+        llist = natural_sort(llist)
 
     if alllibname in llist:
         llist.remove(alllibname)
diff --git a/common/create_lib_library.py b/common/create_lib_library.py
index 247f541..ccb58bf 100755
--- a/common/create_lib_library.py
+++ b/common/create_lib_library.py
@@ -13,6 +13,7 @@
 import os
 import glob
 import fnmatch
+from sort_pdkfiles import natural_sort
 
 #----------------------------------------------------------------------------
 
@@ -60,6 +61,7 @@
                 llist.append(destlibdir + '/' + rfile)
     else:
         llist = glob.glob(destlibdir + '/*.lib')
+        llist = natural_sort(llist)
 
     # Create exclude list with glob-style matching using fnmatch
     if len(llist) > 0: