diff --git a/Imath-3.1.4.tar.gz b/Imath-3.1.4.tar.gz
deleted file mode 100644
index 680c70d..0000000
Binary files a/Imath-3.1.4.tar.gz and /dev/null differ
diff --git a/Imath-3.1.9.tar.gz b/Imath-3.1.9.tar.gz
new file mode 100644
index 0000000..03f3c37
Binary files /dev/null and b/Imath-3.1.9.tar.gz differ
diff --git a/Imath.spec b/Imath.spec
index c1792b5..0a1db77 100644
--- a/Imath.spec
+++ b/Imath.spec
@@ -1,8 +1,8 @@
 %global srcname Imath
 %global sover 29
 Name:                Imath
-Version:             3.1.4
-Release:             2
+Version:             3.1.9
+Release:             1
 Summary:             Library of 2D and 3D vector, matrix, and math operations for computer graphics
 License:             BSD
 URL:                 https://github.com/AcademySoftwareFoundation/Imath
@@ -45,9 +45,6 @@ Obsoletes:           ilmbase-devel < 3.0
 
 %install
 %make_install
-rm -rf ./docs/sphinx/.{doctrees,buildinfo}
-mv ./docs/sphinx ./html
-
 
 %check
 make test
@@ -63,7 +60,6 @@ make test
 %{python3_sitearch}/imathnumpy.so
 
 %files devel
-%doc html/
 %{_includedir}/Imath/
 %{_libdir}/pkgconfig/Imath.pc
 %{_libdir}/pkgconfig/PyImath.pc
@@ -73,6 +69,9 @@ make test
 %{_libdir}/libPyImath_Python3_*-3_1.so
 
 %changelog
+* Thu Oct 12 2023 wulei <wu_lei@hoperun.com> - 3.1.9-1
+- Update to 3.1.9
+
 * Thu Jul 20 2023 chenchen <chen_aka_jan@163.com> - 3.1.4-2
 - modify %file for fix build error