diff --git a/.gitignore b/.gitignore
index 7a755ad..ffb83ae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /Imath-3.0.2.tar.gz
+/Imath-3.1.2.tar.gz
diff --git a/imath.spec b/imath.spec
index 7ef8f1b..2c30964 100644
--- a/imath.spec
+++ b/imath.spec
@@ -1,16 +1,17 @@
 %global srcname Imath
-%global sover 28
+%global sover 29
 %global pyver_under %(%{python3} -Esc "import sys; sys.stdout.write('{0.major}_{0.minor}'.format(sys.version_info))")
 
 Name:           imath
-Version:        3.0.2
-Release:        6%{?dist}
+Version:        3.1.2
+Release:        1%{?dist}
 Summary:        Library of 2D and 3D vector, matrix, and math operations for computer graphics
 
 License:        BSD
 URL:            https://github.com/AcademySoftwareFoundation/Imath
 Source0:        https://github.com/AcademySoftwareFoundation/%{srcname}/archive/v%{version}/%{srcname}-%{version}.tar.gz
 
+Patch0:         imath-python-test.patch
 
 BuildRequires:  cmake
 BuildRequires:  gcc gcc-c++
@@ -18,6 +19,7 @@ BuildRequires:  make
 BuildRequires:  boost-devel
 BuildRequires:  python3-devel
 # For documentation generation
+BuildRequires:  doxygen
 BuildRequires:  python3-sphinx
 BuildRequires:  python3-breathe
 
@@ -48,14 +50,19 @@ Requires:       python3-devel
 
 
 %prep
-%autosetup -n %{srcname}-%{version}
+%autosetup -n %{srcname}-%{version} -p1
 
 
 %build
-%cmake -DPYTHON=ON
+%cmake -DPYTHON=ON -DCMAKE_INSTALL_PREFIX=%{_usr}
 %cmake_build
 
-# Generate html docs
+# Generate man docs
+cd docs
+# https://github.com/AcademySoftwareFoundation/Imath/issues/196#issuecomment-896433898
+rm classes/half.rst
+doxygen
+cd ..
 PYTHONPATH=${PWD} sphinx-build-3 docs/ html
 # Remove the sphinx-build leftovers
 rm -rf html/.{doctrees,buildinfo}
@@ -75,10 +82,10 @@ rm -rf html/.{doctrees,buildinfo}
 %files
 %license LICENSE.md
 %doc CHANGES.md CODE_OF_CONDUCT.md CONTRIBUTING.md CONTRIBUTORS.md README.md SECURITY.md
-%{_libdir}/libImath-3_0.so.%{sover}*
+%{_libdir}/libImath-3_1.so.%{sover}*
 
 %files -n python3-%{name}
-%{_libdir}/libPyImath_Python%{pyver_under}-3_0.so.%{sover}*
+%{_libdir}/libPyImath_Python%{pyver_under}-3_1.so.%{sover}*
 %{python3_sitearch}/imath.so
 %{python3_sitearch}/imathnumpy.so
 
@@ -89,11 +96,14 @@ rm -rf html/.{doctrees,buildinfo}
 %{_libdir}/pkgconfig/PyImath.pc
 %{_libdir}/cmake/Imath/
 %{_libdir}/libImath.so
-%{_libdir}/libImath-3_0.so
-%{_libdir}/libPyImath_Python%{pyver_under}-3_0.so
+%{_libdir}/libImath-3_1.so
+%{_libdir}/libPyImath_Python%{pyver_under}-3_1.so
 
 
 %changelog
+* Wed Aug 11 2021 Josef Ridky <jridky@redhat.com> - 3.1.2-1
+- New upstream release 3.1.2
+
 * Fri Aug 06 2021 Jonathan Wakely <jwakely@redhat.com> - 3.0.2-6
 - Rebuilt for Boost 1.76
 
diff --git a/sources b/sources
index e069fa2..c9db1dd 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (Imath-3.0.2.tar.gz) = 4c683370717509847d14e26e55f68ab85664af6095e5a85310529f8e9b4cbaf871505cb85cc405ae48543c277dfa9186cf52f173d4ddca01ea23b14732bf3c8a
+SHA512 (Imath-3.1.2.tar.gz) = 17d795f5cc44589b55bf921b93b576a7248c1bcd746f34220833378ba7c836af7cf842d96d98c09b9c3b11000cc1762dd5340dad30b51720fc6bcaea0c7af5d0