diff --git a/CHANGES.md b/CHANGES.md
index 6faa4b8dcea33ee70c34888a373a79bdc64ee0da..9312dc294148da8bfeb215c325584352df5cd90c 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,12 @@
+Synapse 1.5.1 (2019-11-06)
+==========================
+
+Features
+--------
+
+- Limit the length of data returned by url previews, to prevent DoS attacks. ([\#6331](https://github.com/matrix-org/synapse/issues/6331), [\#6334](https://github.com/matrix-org/synapse/issues/6334))
+
+
Synapse 1.5.0 (2019-10-29)
==========================
diff --git a/changelog.d/6331.feature b/changelog.d/6331.feature
deleted file mode 100644
index eaf69ef3f6284dd1c89c4e3314581f5c33798c97..0000000000000000000000000000000000000000
--- a/changelog.d/6331.feature
+++ /dev/null
@@ -1 +0,0 @@
-Limit the length of data returned by url previews, to prevent DoS attacks.
diff --git a/changelog.d/6334.feature b/changelog.d/6334.feature
deleted file mode 100644
index eaf69ef3f6284dd1c89c4e3314581f5c33798c97..0000000000000000000000000000000000000000
--- a/changelog.d/6334.feature
+++ /dev/null
@@ -1 +0,0 @@
-Limit the length of data returned by url previews, to prevent DoS attacks.
diff --git a/debian/changelog b/debian/changelog
index acda7e5c63adcc113783261503e2ec56c1edf090..c4415f460a86fccf2b1ad5d67bec8ee35ec69e43 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+matrix-synapse-py3 (1.5.1) stable; urgency=medium
+
+ * New synapse release 1.5.1.
+
+ -- Synapse Packaging team <packages@matrix.org> Wed, 06 Nov 2019 10:02:14 +0000
+
matrix-synapse-py3 (1.5.0) stable; urgency=medium
* New synapse release 1.5.0.
diff --git a/synapse/__init__.py b/synapse/__init__.py
index 8587ffa76fc7c0ff29e9258056750719e966fc53..ec16f54a4907c7e0194d8043dff779b233dcde83 100644
--- a/synapse/__init__.py
+++ b/synapse/__init__.py
@@ -36,7 +36,7 @@ try:
except ImportError:
pass
-__version__ = "1.5.0"
+__version__ = "1.5.1"
if bool(os.environ.get("SYNAPSE_TEST_PATCH_LOG_CONTEXTS", False)):
# We import here so that we don't have to install a bunch of deps when