diff --git a/peazip-5.5.0.src.zip b/peazip-5.5.0.src.zip
deleted file mode 100644
index 6a390e5..0000000
--- a/peazip-5.5.0.src.zip
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:808083769c586f26e28a730730990c8b3046c417515b2ff2010dabc748953836
-size 3930875
diff --git a/peazip-5.5.1.src.zip b/peazip-5.5.1.src.zip
new file mode 100644
index 0000000..d6e310f
--- /dev/null
+++ b/peazip-5.5.1.src.zip
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a68f7a9f7fc81d948f2364c5096faaf3ec1e420201d38957da643279edc457a0
+size 3937729
diff --git a/peazip.changes b/peazip.changes
index e14aed5..874501f 100644
--- a/peazip.changes
+++ b/peazip.changes
@@ -1,3 +1,17 @@
+-------------------------------------------------------------------
+* Tue Dec 09 2014 - joerg.lorenzen@ki.tng.de
+- update to version 5.5.1
+  * File formats that can be handled by PeaZip are highlighted by
+    a character in Information column:
+      '+' known archive type, open with double click
+          (i.e. RAR, TAR, ZIP, ZIPX...)
+      '.' known file type usually not handled as archive, open
+          with "Open as archive" (i.e. EXE, DLL, MS Office files)
+  * New "Update only" mode for Windows installer, update
+    application's files and keeps unchanged the system settings
+    (file associations, context menu, send to menu)
+  * 181 file extensions are now supported
+
 -------------------------------------------------------------------
 * Mon Oct 20 2014 - joerg.lorenzen@ki.tng.de
 - update to version 5.5.0
diff --git a/peazip.spec b/peazip.spec
index cc15c5b..b2d527a 100644
--- a/peazip.spec
+++ b/peazip.spec
@@ -17,7 +17,7 @@
 
 Name:           peazip
 Summary:        Free Zip files utility
-Version:        5.5.0
+Version:        5.5.1
 Release:        1
 Url:            http://sourceforge.net/projects/peazip/
 Source0:        peazip-%{version}.src.zip