diff --git a/scamper-cvs-20171204.tar.gz b/scamper-cvs-20171204.tar.gz
deleted file mode 100644
index 4ec161d..0000000
--- a/scamper-cvs-20171204.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:556596a138b6a403fbe105affdc7beb8fa98e292767304378c8308fa11b73529
-size 1671056
diff --git a/scamper-cvs-20180504.tar.gz b/scamper-cvs-20180504.tar.gz
new file mode 100644
index 0000000..6be0e0d
--- /dev/null
+++ b/scamper-cvs-20180504.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f8e192a12439ccba712870a47fb0a239715f2c43a98df3d1ae6761fa688fe189
+size 1709320
diff --git a/scamper.changes b/scamper.changes
index 234c4d9..2173328 100644
--- a/scamper.changes
+++ b/scamper.changes
@@ -1,3 +1,43 @@
+-------------------------------------------------------------------
+Sun May  6 08:20:47 UTC 2018 - sebix+novell.com@sebix.at
+
+- update to version 20180504:
+ * scamper:
+  * increase the size of a buffer in scamper's traceroute json
+    creation to reduce chance of truncation.
+  * print the number of probes sent by traceroute in the json
+    output.
+  * enforce a minimum firsthop value of 1 when reading a warts
+    traceroute object.
+ * sc_bdrmap:
+  * choose a static ICMP checksum value when using Paris traceroute
+    to reduce churn in observed topology in bdrmap output.
+  * add ability to pass list of ASes to -d traces to see
+    traceroutes towards specific ASes, useful for understanding
+    bdrmap inferences.
+
+-------------------------------------------------------------------
+Thu Mar  8 19:36:27 UTC 2018 - sebix+novell.com@sebix.at
+
+- update to version 20180309:
+ * sc_*:
+  * For the utilities (sc_*) that read input files, do not allocate
+    memory to hold the entire input file in memory before parsing
+    the file.  This improvement affects sc_ally, sc_attach,
+    sc_bdrmap, sc_filterpolicy, sc_radargun, sc_speedtrap,
+    sc_tbitblind, sc_tbitpmtud, sc_uptime, sc_warts2text.
+ * sc_tbitpmtud:
+  * add scamper driver from IMC2010 paper to collect data on webserver
+    responsiveness to ICMP packet too big messages, and perform
+    rudimentary analysis of collected data.
+ * sc_ttlexp:
+  * new utility to dump source addresses from ICMP TTL expired
+    messages in warts files.
+ * sc_wartsfix:
+  * add a manual page
+ * sc_warts2csv:
+  * add a manual page
+
 -------------------------------------------------------------------
 Mon Dec  4 08:40:18 UTC 2017 - sebix+novell.com@sebix.at
 
diff --git a/scamper.spec b/scamper.spec
index bd6d311..d474398 100644
--- a/scamper.spec
+++ b/scamper.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package scamper
 #
-# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
 # Copyright (c) 2016, Martin Hauke <mardnh@gmx.de>
 #
 # All modifications and additions to the file contributed by third parties
@@ -18,10 +18,10 @@
 
 
 Name:           scamper
-Version:        20171204
+Version:        20180504
 Release:        0
 Summary:        Parallel Internet measurement utility
-License:        GPL-2.0
+License:        GPL-2.0-only
 Group:          Productivity/Networking/Diagnostic
 Url:            https://www.caida.org/tools/measurement/scamper/
 Source:         https://www.caida.org/tools/measurement/%{name}/code/%{name}-cvs-%{version}.tar.gz