diff --git a/.gitignore b/.gitignore
index 47e55c0..b36c4c3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,4 @@ octave-3.2.4.tar.bz2
 /octave-4.0.0.tar.xz
 /octave-4.0.1.tar.xz
 /octave-4.0.2.tar.xz
+/octave-4.0.3.tar.xz
diff --git a/octave-signbit.patch b/octave-signbit.patch
deleted file mode 100644
index 00d4df8..0000000
--- a/octave-signbit.patch
+++ /dev/null
@@ -1,21 +0,0 @@
-diff -up octave-4.0.1/libgnu/math.in.h.signbit octave-4.0.1/libgnu/math.in.h
---- octave-4.0.1/libgnu/math.in.h.signbit	2015-05-14 01:31:01.000000000 -0600
-+++ octave-4.0.1/libgnu/math.in.h	2016-03-23 17:34:43.719131933 -0600
-@@ -1,6 +1,6 @@
- /* A GNU-like <math.h>.
- 
--   Copyright (C) 2002-2003, 2007-2015 Free Software Foundation, Inc.
-+   Copyright (C) 2002-2003, 2007-2016 Free Software Foundation, Inc.
- 
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-@@ -2205,7 +2205,8 @@ _GL_WARN_REAL_FLOATING_DECL (isnan);
- 
- 
- #if @GNULIB_SIGNBIT@
--# if @REPLACE_SIGNBIT_USING_GCC@
-+# if (@REPLACE_SIGNBIT_USING_GCC@ \
-+      && (!defined __cplusplus || __cplusplus < 201103L))
- #  undef signbit
-    /* GCC 4.0 and newer provides three built-ins for signbit.  */
- #  define signbit(x) \
diff --git a/octave.spec b/octave.spec
index 1f9fd35..cfd059d 100644
--- a/octave.spec
+++ b/octave.spec
@@ -15,8 +15,8 @@
 
 Name:           octave
 Epoch:          6
-Version:        4.0.2
-Release:        3%{?dist}
+Version:        4.0.3
+Release:        1%{?dist}
 Summary:        A high-level language for numerical computations
 Group:          Applications/Engineering
 License:        GPLv3+
@@ -36,9 +36,6 @@ Patch0:         octave-pkgbuilddir.patch
 # Remove project_group from appdata.xml file
 # https://bugzilla.redhat.com/show_bug.cgi?id=1293561
 Patch2:         octave-appdata.patch
-# Fix gnulib signbit for g++ 6
-# https://bugzilla.redhat.com/show_bug.cgi?id=1276893
-Patch3:         octave-signbit.patch
 # Add needed #include <math.h> to bring in gnulib
 Patch4:         octave-gnulib.patch
 # Handle g++ 6 abs() change
@@ -170,7 +167,6 @@ This package contains documentation for Octave.
 %setup -q -n %{name}-%{version}%{?rctag}
 %patch0 -p1 -b .pkgbuilddir
 %patch2 -p1 -b .appdata
-%patch3 -p1 -b .signbit
 %patch4 -p1 -b .gnulib
 %patch5 -p1 -b .abs
 %patch6 -p1 -b .term
@@ -407,6 +403,9 @@ fi
 %{_pkgdocdir}/refcard*.pdf
 
 %changelog
+* Sun Jul 3 2016 Orion Poplawski <orion@cora.nwra.com> - 6:4.0.3-1
+- Update to 4.0.3
+
 * Wed Jun 29 2016 Orion Poplawski <orion@cora.nwra.com> - 6:4.0.2-3
 - Rebuild for hdf5 1.8.17
 
diff --git a/sources b/sources
index fe50f0b..f74b1e9 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-646f397dac770d41448870ac3ba9e3b9  octave-4.0.2.tar.xz
+73b140bc69ac21cfaa3e473b91b6842b  octave-4.0.3.tar.xz