diff --git a/expat/lib/libexpat.def b/expat/lib/libexpat.def
index 3920bbc..cfc61fe 100644
--- a/expat/lib/libexpat.def
+++ b/expat/lib/libexpat.def
@@ -71,3 +71,6 @@
   XML_StopParser @63
   XML_ResumeParser @64
   XML_GetParsingStatus @65
+; added with version 2.1.0
+; XML_GetAttributeInfo @66
+  XML_SetHashSalt @67@
diff --git a/expat/lib/libexpatw.def b/expat/lib/libexpatw.def
index 3920bbc..cfc61fe 100644
--- a/expat/lib/libexpatw.def
+++ b/expat/lib/libexpatw.def
@@ -71,3 +71,6 @@
   XML_StopParser @63
   XML_ResumeParser @64
   XML_GetParsingStatus @65
+; added with version 2.1.0
+; XML_GetAttributeInfo @66
+  XML_SetHashSalt @67@