diff --git a/_service b/_service
index 0621152..cdc0e12 100644
--- a/_service
+++ b/_service
@@ -5,7 +5,7 @@
     <param name="url">https://github.com/matrix-org/synapse.git</param>
     <param name="scm">git</param>
     <param name="versionrewrite-pattern">v(.*)</param>
-    <param name="revision">v1.5.0</param>
+    <param name="revision">v1.5.1</param>
   </service>
   <service name="set_version" mode="disabled"/>
   <service name="tar" mode="buildtime"/>
diff --git a/matrix-synapse-1.5.0.obscpio b/matrix-synapse-1.5.0.obscpio
deleted file mode 100644
index b39b8dc..0000000
--- a/matrix-synapse-1.5.0.obscpio
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:1d3959dbe5dd0015a8600774860a9f8401ef40207349ab27bf2a87454d6d8342
-size 7147533
diff --git a/matrix-synapse-1.5.1.obscpio b/matrix-synapse-1.5.1.obscpio
new file mode 100644
index 0000000..c7f2881
--- /dev/null
+++ b/matrix-synapse-1.5.1.obscpio
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ccbfd08533f0469814fd88ecbd1d024844767efcc1d9ae9a21674919ef855035
+size 7150093
diff --git a/matrix-synapse-test.spec b/matrix-synapse-test.spec
index 337d8f4..d562de2 100644
--- a/matrix-synapse-test.spec
+++ b/matrix-synapse-test.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package matrix-synapse-test
 #
-# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2019 SUSE LLC.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -32,7 +32,7 @@
 
 %define         pkgname matrix-synapse
 Name:           %{pkgname}-test
-Version:        1.5.0
+Version:        1.5.1
 Release:        0
 Summary:        Test package for %{pkgname}
 License:        Apache-2.0
diff --git a/matrix-synapse.changes b/matrix-synapse.changes
index 6f3031e..58af9d1 100644
--- a/matrix-synapse.changes
+++ b/matrix-synapse.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Mon Nov 18 11:16:03 UTC 2019 - Aleksa Sarai <asarai@suse.com>
+
+- Update to 1.5.1.
+
+  * Limit the length of data returned by url previews, to prevent DoS attacks.
+
+  The full changelog is included in
+  /usr/share/doc/packages/matrix-synapse/CHANGES.md.
+
 -------------------------------------------------------------------
 Wed Oct 30 02:20:29 UTC 2019 - Aleksa Sarai <asarai@suse.com>
 
diff --git a/matrix-synapse.obsinfo b/matrix-synapse.obsinfo
index 54514b4..06f3de3 100644
--- a/matrix-synapse.obsinfo
+++ b/matrix-synapse.obsinfo
@@ -1,5 +1,5 @@
 name: matrix-synapse
-version: 1.5.0
-mtime: 1572359334
-commit: 9ffcf0f7ba72f16e366f04db6384a9233b1808cb
+version: 1.5.1
+mtime: 1573034543
+commit: feafd98aca3e72d27516c79f986a28ea39886ebc
 
diff --git a/matrix-synapse.spec b/matrix-synapse.spec
index 490624a..a070bd3 100644
--- a/matrix-synapse.spec
+++ b/matrix-synapse.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package matrix-synapse
 #
-# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2019 SUSE LLC.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -43,7 +43,7 @@
 %define         modname synapse
 %define         pkgname matrix-synapse
 Name:           %{pkgname}
-Version:        1.5.0
+Version:        1.5.1
 Release:        0
 Summary:        Matrix protocol reference homeserver
 License:        Apache-2.0