diff --git a/javapackages.spec b/javapackages.spec
index 792d559..5d759c1 100644
--- a/javapackages.spec
+++ b/javapackages.spec
@@ -1,6 +1,6 @@
 Name:          javapackages
 Version:       6.0.0
-Release:       1mamba
+Release:       2mamba
 Summary:       A collection of tools that make it easier to build RPM packages containing software running on the Java platform
 Group:         Development/Tools
 Vendor:        openmamba
@@ -18,6 +18,13 @@ Provides:      jpackage-utils
 Obsoletes:     jpackage-utils < 5.3.1
 Provides:      javapackages-tools = %{?epoch:%epoch:}%{version}-%{release}
 Requires:      %{name}-filesystem = %{?epoch:%epoch:}%{version}-%{release}
+Provides:      java-gcj-compat
+Obsoletes:     java-gcj-compat <= 1:1.0.80-46mamba
+Provides:      java-gcj-compat-runtime
+Obsoletes:     java-gcj-compat-runtime <= 1:1.0.80-46mamba
+Obsoletes:     java-gcj-compat-javadoc <= 1:1.0.80-46mamba
+Obsoletes:     java-gcj-compat-python <= 1:1.0.80-46mamba
+Obsoletes:     java-gcj-compat-source <= 1:1.0.80-46mamba
 
 %description
 Java Packages Tools is a collection of tools that make it easier to build RPM packages containing software running on the Java platform.
@@ -114,6 +121,9 @@ chmod +x %{buildroot}%{_prefix}/lib/rpm/*.{req,prov}
 %defattr(-,root,root)
 
 %changelog
+* Sun Aug 14 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 6.0.0-2mamba
+- obsolete java-gcj-compat
+
 * Mon Nov 29 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 6.0.0-1mamba
 - update to 6.0.0