diff --git a/nlopt.spec b/nlopt.spec
index c9d5a75..527d916 100644
--- a/nlopt.spec
+++ b/nlopt.spec
@@ -1,6 +1,6 @@
 Name:          nlopt
 Version:       2.7.1
-Release:       1mamba
+Release:       2mamba
 Summary:       A library for nonlinear optimization
 Group:         System/Libraries
 Vendor:        openmamba
@@ -16,6 +16,7 @@ BuildRequires: libpython311-devel
 BuildRequires: libstdc++6-devel
 BuildRequires: octave-devel
 ## AUTOBUILDREQ-END
+BuildRequires: octave-devel >= 9.1.0-1mamba
 BuildRequires: cmake
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
 
@@ -83,5 +84,8 @@ This package contains libraries and header files for developing applications tha
 %doc ChangeLog README.md TODO
 
 %changelog
+* Thu Apr 04 2024 Automatic Build System <autodist@mambasoft.it> 2.7.1-2mamba
+- rebuilt by autoport with build requirements: octave-devel>=9.1.0-1mamba
+
 * Mon Dec 25 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 2.7.1-1mamba
 - package created using the webbuild interface