diff --git a/gap-orb.changes b/gap-orb.changes
index 675f4d5..646d84c 100644
--- a/gap-orb.changes
+++ b/gap-orb.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Sat Mar 12 19:01:53 UTC 2016 - jengelh@inai.de
+
+- Update to new upstream release 4.7.5
+* Show an error when the user tries to compute orbits of objects
+  for which no ChooseHashFunction method is available. Previously,
+  it would fall back to a "trivial" hash function, which lead to
+  worst-case performance.
+* Remove Jenkins hash in favor of the Murmur hash built into GAP
+* Document that MakeSchreierTreeShallow only works for orbits with
+  log.
+
 -------------------------------------------------------------------
 Fri Dec 12 12:40:25 UTC 2014 - jengelh@inai.de
 
diff --git a/gap-orb.spec b/gap-orb.spec
index b78fc6b..bf27b1b 100644
--- a/gap-orb.spec
+++ b/gap-orb.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package gap-orb
 #
-# Copyright (c) 2013 SUSE LINUX Products GmbH, Nuernberg, Germany.
+# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,12 +17,12 @@
 
 
 Name:           gap-orb
-Summary:        GAP: Methods to enumerate Orbits
-Version:        4.7.3
+Version:        4.7.5
 Release:        0
+Summary:        GAP: Methods to enumerate Orbits
 License:        GPL-3.0+
 Group:          Productivity/Scientific/Math
-URL:            https://github.com/gap-system/orb
+Url:            http://gap-packages.github.io/orb/
 
 #Git-Clone:	git://github.com/gap-system/orb
 Source:         ftp://ftp.gap-system.org/pub/gap/gap4/tar.bz2/packages/orb-%version.tar.bz2
@@ -33,7 +33,7 @@ BuildRequires:  gap-devel >= 4.4.12
 BuildRequires:  gap-rpm-devel
 BuildRequires:  gmp-devel
 BuildRequires:  libtool
-Requires:       gap-core >= 4.4.12
+Requires:       gap-core >= 4.6
 Requires:       gap-gapdoc >= 1.2
 Suggests:       gap-io >= 3.3
 
diff --git a/orb-4.7.3.tar.bz2 b/orb-4.7.3.tar.bz2
deleted file mode 100644
index b210615..0000000
--- a/orb-4.7.3.tar.bz2
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:59de34714ac669271b31d7063a90a4a1e00956d0b811162ca0549cdf59d9b91f
-size 1094759
diff --git a/orb-4.7.5.tar.bz2 b/orb-4.7.5.tar.bz2
new file mode 100644
index 0000000..a1f04df
--- /dev/null
+++ b/orb-4.7.5.tar.bz2
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9e0c0793f85b1e03830caa034337f4c344e7bb4c48682388ef511f3b57a44906
+size 1121294