diff --git a/icedtea-web.spec b/icedtea-web.spec
index f40d840..a5661f1 100644
--- a/icedtea-web.spec
+++ b/icedtea-web.spec
@@ -9,7 +9,7 @@
 
 Name:          icedtea-web
 Version:       1.8.8
-Release:       3mamba
+Release:       4mamba
 Summary:       IcedTea Web Start implementation
 Group:         System/Libraries/Java
 Vendor:        openmamba
@@ -27,20 +27,15 @@ BuildRequires: libstdc++6-devel
 BuildRequires: desktop-file-utils
 BuildRequires: eclipse-ecj
 BuildRequires: java-openjdk8
-BuildRequires: xulrunner-devel
-BuildRequires: rustc
-BuildRequires: java-junit48
+BuildRequires: java-junit
 BuildRequires: java-rhino
 BuildRequires: java-hamcrest
 BuildRequires: java-tagsoup
 BuildRequires: objectweb-asm
+BuildRequires: rustc
 #BuildRequires: zsh
 Requires:      java-openjdk8-runtime
-Requires:      java-junit48
 Requires:      java-rhino
-Requires:      java-hamcrest
-Requires:      java-tagsoup
-Requires:      objectweb-asm
 Obsoletes:     icedtea-web-plugin <= 1.8.8-1mamba
 
 %description
@@ -182,6 +177,9 @@ fi
 %{_javadocdir}/icedtea-web
 
 %changelog
+* Wed Oct 25 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 1.8.8-4mamba
+- rebuild with only necessary builddeps and deps
+
 * Thu Jun 09 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 1.8.8-3mamba
 - more fixes and legacy cleanups to alternatives