diff --git a/.gitignore b/.gitignore
index d3d6831..f8de938 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@
 /COPASI-Build-156.tar.gz
 /COPASI-Build-158.tar.gz
 /COPASI-Build-159.tar.gz
+/COPASI-Build-165.tar.gz
diff --git a/COPASI.spec b/COPASI.spec
index 21d7265..c4ef536 100644
--- a/COPASI.spec
+++ b/COPASI.spec
@@ -9,7 +9,7 @@
 %endif
 %endif
 
-%global  buildid    159
+%global  buildid    165
 
 %global with_python2 1
 %global with_python3 1
@@ -554,6 +554,9 @@ appstream-util validate-relax --nonet $RPM_BUILD_ROOT%{_datadir}/appdata/*.appda
 %{_datadir}/copasi/doc/
 
 %changelog
+* Fri Sep 22 2017 Antonio Trande <sagitterATfedoraproject.org> - 4.20.165-1
+- Update to version 4.20 -build 165
+
 * Tue Sep 05 2017 Antonio Trande <sagitterATfedoraproject.org> - 4.20.159-1
 - Update to version 4.20 -build 159
 
diff --git a/sources b/sources
index 7829fd0..7b5a103 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (COPASI-Build-159.tar.gz) = af5f9b93e0186d5292093f68ea46f840141ff87478c2539a37c85ed48d77e4c195fa18c3b30692f484e7febad025446cebadd35cba325afaa5f9b2e8c406f5b3
+SHA512 (COPASI-Build-165.tar.gz) = 30a459f9e5d4356732357337147627606adb4ee375dd2ccaf09ba600c6440a2fc63488b404700ec5b002eed960db909bdf2fbc2ac3477887d6f79dc16314bb29