diff --git a/libnspr.spec b/libnspr.spec
index 2ae0e53..86171a2 100644
--- a/libnspr.spec
+++ b/libnspr.spec
@@ -1,5 +1,5 @@
 Name:          libnspr
-Version:       4.19
+Version:       4.20
 Release:       1mamba
 Summary:       Netscape Portable Runtime
 Summary(it):   Runtime portabili di Netscape
@@ -119,6 +119,9 @@ rm -f %{buildroot}%{_libdir}/libplds4.a
 %{_libdir}/pkgconfig/nspr.pc
 
 %changelog
+* Thu Sep 06 2018 Automatic Build System <autodist@mambasoft.it> 4.20-1mamba
+- automatic version update by autodist
+
 * Mon Mar 12 2018 Automatic Build System <autodist@mambasoft.it> 4.19-1mamba
 - automatic version update by autodist