diff --git a/lib/ltasip.py b/lib/ltasip.py
index 08552462b3e7922fbe0ce15dc5cb359b87e951e8..fa23581b10cd57389cf39849f18ef9ea8b92ecae 100644
--- a/lib/ltasip.py
+++ b/lib/ltasip.py
@@ -17,7 +17,7 @@ import pyxb.utils.six as _six
 _GenerationUID = pyxb.utils.utility.UniqueIdentifier('urn:uuid:84ba4972-d87c-11ea-a91f-0242ac110001')
 
 # Version of PyXB used to generate the bindings
-_PyXBVersion = '1.2.6'
+_PyXBVersion = '1.2.5'
 # Generated bindings are not compatible across PyXB versions
 if pyxb.__version__ != _PyXBVersion:
     raise pyxb.PyXBVersionError(_PyXBVersion)