diff --git a/.gitignore b/.gitignore
index 4c62098..f00a5e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /Imath-3.1.2.tar.gz
 /Imath-3.1.3.tar.gz
 /Imath-3.1.4.tar.gz
+/Imath-3.1.5.tar.gz
diff --git a/imath.spec b/imath.spec
index f2c239c..0ae1697 100644
--- a/imath.spec
+++ b/imath.spec
@@ -3,7 +3,7 @@
 %global pyver_under %(%{python3} -Esc "import sys; sys.stdout.write('{0.major}_{0.minor}'.format(sys.version_info))")
 
 Name:           imath
-Version:        3.1.4
+Version:        3.1.5
 Release:        1%{?dist}
 Summary:        Library of 2D and 3D vector, matrix, and math operations for computer graphics
 
@@ -97,6 +97,9 @@ mv %{__cmake_builddir}/docs/sphinx ./html
 
 
 %changelog
+* Fri Apr 15 2022 Richard Shaw <hobbes1069@gmail.com> - 3.1.5-1
+- Update to 3.1.5.
+
 * Sun Jan 23 2022 Richard Shaw <hobbes1069@gmail.com> - 3.1.4-1
 - Update to 3.1.4.
 
diff --git a/sources b/sources
index 1f6defd..f8cb487 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (Imath-3.1.4.tar.gz) = f9f7d8ec333e6383191543ee927dc40e870a6330225b01070bb93ad3d149c5e31bd5989d4dc52f3321490c1c5a7cab55582c6e42e34ab4ca5723170e7578e286
+SHA512 (Imath-3.1.5.tar.gz) = 8344e42c75d8e4bb21facb837535f0c9e4a9489d9edebcc25d5d3c6063535f2bf54e4517d8fca3fedada248457aa07c9bd77d6e843a9d115278fc154de2cdc9d