diff --git a/.gitignore b/.gitignore
index 5f0ff95..c4e25db 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
-/ntl-6.1.0.tar.gz
 /ntl-6.2.1.tar.gz
+/ntl-8.1.0.tar.gz
diff --git a/ntl-sagemath.patch b/ntl-sagemath.patch
index 9d90a16..6d5387a 100644
--- a/ntl-sagemath.patch
+++ b/ntl-sagemath.patch
@@ -1,9 +1,10 @@
---- ./include/NTL/tools.h.orig	2014-08-26 11:51:43.000000000 -0600
-+++ ./include/NTL/tools.h	2014-09-18 20:00:00.000000000 -0600
-@@ -310,6 +310,12 @@ long CharToIntVal(long c);
- char IntValToChar(long a);
+--- ./include/NTL/tools.h.orig	2015-01-09 06:58:19.000000000 -0700
++++ ./include/NTL/tools.h	2015-01-12 20:00:00.000000000 -0700
+@@ -406,7 +406,12 @@ void swap(WrappedPtr<T,Deleter>& x, Wrap
  
+ // Error Handling
  
+-
 +/*
 +  This function is not present in vanilla NTL.
 +  See tools.c for documentation.
@@ -11,10 +12,10 @@
 +void SetErrorCallbackFunction(void (*func)(const char *s, void *context),
 +			      void *context);
  
- void Error(const char *s);
- 
---- ./src/tools.c.orig	2014-08-26 11:51:42.000000000 -0600
-+++ ./src/tools.c	2014-09-18 20:00:00.000000000 -0600
+ class ErrorObject : public NTL_SNS runtime_error {
+ public:
+--- ./src/tools.c.orig	2015-01-09 06:58:19.000000000 -0700
++++ ./src/tools.c	2015-01-12 20:00:00.000000000 -0700
 @@ -17,9 +17,33 @@ NTL_START_IMPL
  
  NTL_THREAD_LOCAL void (*ErrorCallback)() = 0;
@@ -41,7 +42,7 @@
 +   ErrorCallbackContext = context;
 +}
  
- void Error(const char *s)
+ void TerminalError(const char *s)
  {
 +   if (ErrorCallbackFunction != NULL)
 +      ErrorCallbackFunction(s, ErrorCallbackContext);
diff --git a/ntl.spec b/ntl.spec
index fc7d282..11d2a72 100644
--- a/ntl.spec
+++ b/ntl.spec
@@ -11,7 +11,7 @@
 
 Summary: High-performance algorithms for vectors, matrices, and polynomials 
 Name:    ntl 
-Version: 6.2.1
+Version: 8.1.0
 Release: 1%{?dist}
 
 License: GPLv2+
@@ -140,7 +140,7 @@ done
 %files
 %doc README
 %license doc/copying.txt
-%{_libdir}/libntl.so.5*
+%{_libdir}/libntl.so.9*
 
 %files devel 
 %doc doc/*
@@ -154,6 +154,9 @@ done
 
 
 %changelog
+* Thu Jan 15 2015 Jerry James <loganjerry@gmail.com> - 8.1.0-1
+- ntl-8.1.0
+
 * Tue Oct 28 2014 Jerry James <loganjerry@gmail.com> - 6.2.1-1
 - ntl-6.2.1
 - Fix license handling
diff --git a/sources b/sources
index 5c5a38e..b1c37ac 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-00b7e1cab9bf9b0eae2ad9beab4b0fc9  ntl-6.2.1.tar.gz
+9f03248c3c94469f59c58755e87fab7e  ntl-8.1.0.tar.gz