diff --git a/.gitignore b/.gitignore
index 522a3c1..23d3b94 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,4 @@ cppad-20170000.3
 # ---------------------------------------------------------------------------
 # Running fedpkg new-sources may create entries below the line of dashes.
 # Edit these entries to be above the line of dashes.
+/cppad-20170000.4.gpl.tgz
diff --git a/cppad.spec b/cppad.spec
index 2e0bdf2..7ed7242 100644
--- a/cppad.spec
+++ b/cppad.spec
@@ -17,7 +17,7 @@
 
 # Release starts with 1; https://fedoraproject.org/wiki/Packaging:Versioning
 Name: cppad
-Version: 20170000.3
+Version: 20170000.4
 Release: 1%{?dist}
 Summary: C++ Algorithmic Differentiation (AD), %{name}-devel and %{name}-doc
 
@@ -180,6 +180,9 @@ make check
 
 # ----------------------------------------------------------------------------
 %changelog
+* Mon Apr 03 2017 Brad Bell <bradbell at seanet dot com> - 20170000.4-1
+- Advance to 20170000.4 to take advantage of some upstrean bug fixes.
+
 * Tue Mar 07 2017 Brad Bell <bradbell at seanet dot com> - 20170000.3-1
 - Advance to 20170000.3 to take advantage of some upstrean bug fixes.
 - The results of cmake comman depend on the architecture, so remove 'noarch'
diff --git a/sources b/sources
index 7da6ab6..ef66c0b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (cppad-20170000.3.gpl.tgz) = 8f72c21dc1dcaf9d0988552d1097eebd8949f086afcbd6fab1a92f1b0d75d8e07b143d554f16c5521b7b3f065bb54ab042de0789d1c3b9c071567882988da5ba
+SHA512 (cppad-20170000.4.gpl.tgz) = eb846d5b50530d701c86049f0abc1ced42fa2b618a6ad7b35bc107128cdc0df730c2d8a36a40b9577958af9c5be306c758d13f6d770973f1ff26ccf007d3e84f