diff --git a/oiio.spec b/oiio.spec
index 9717b9c..0210a19 100644
--- a/oiio.spec
+++ b/oiio.spec
@@ -1,6 +1,6 @@
 Name:          oiio
 Version:       2.3.12.0
-Release:       1mamba
+Release:       2mamba
 Summary:       Libraries and tools for VFX studios and developers of tools such as renderers, compositors, viewers
 Group:         Applications/Graphics
 Vendor:        openmamba
@@ -29,6 +29,7 @@ BuildRequires: libjpeg-devel
 BuildRequires: libopencolorio-devel
 BuildRequires: libopencv-devel
 BuildRequires: libopenexr-devel
+BuildRequires: libopenjpeg-devel
 BuildRequires: libpng-devel
 BuildRequires: libpython3-devel
 BuildRequires: libraw-devel
@@ -41,7 +42,8 @@ BuildRequires: libz-devel
 BuildRequires: pugixml-devel
 BuildRequires: qt5-qtbase-devel
 ## AUTOBUILDREQ-END
-BuildRequires: libdcmtk-devel >= 3.6.6
+BuildRequires: libopencv-devel >= 4.5.5-1mamba
+BuildRequires: libdcmtk-devel >= 3.6.7
 BuildRequires: libopencolorio-devel >= 2.1.1
 BuildRequires: python-pybind11-devel
 BuildRequires: cmake
@@ -168,6 +170,9 @@ This package contains libraries and header files for developing applications tha
 %doc README.md
 
 %changelog
+* Sun May 29 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.3.12.0-2mamba
+- rebuilt by autoport with build requirements: libopencv-devel>=4.5.5-1mamba
+
 * Wed Feb 02 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.3.12.0-1mamba
 - update to 2.3.12.0