diff --git a/CHANGES.md b/CHANGES.md
index 74a5dbf42..a7d2529b5 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,18 @@
+Synapse 1.57.1 (2022-04-20)
+===========================
+
+This is a patch release that only affects the Docker image. It is only of interest to administrators using [the LDAP module][LDAPModule] to authenticate their users.
+If you have already upgraded to Synapse 1.57.0 without problem, then you have no need to upgrade to this patch release.
+
+[LDAPModule]: https://github.com/matrix-org/matrix-synapse-ldap3
+
+
+Updates to the Docker image
+---------------------------
+
+- Include version 0.2.0 of the Synapse LDAP Auth Provider module in the Docker image. This matches the version that was present in the Docker image for Synapse v1.56.0. ([\#12512](https://github.com/matrix-org/synapse/issues/12512))
+
+
 Synapse 1.57.0 (2022-04-19)
 ===========================
 
diff --git a/debian/changelog b/debian/changelog
index a46bb2bba..05e6bd75a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -4,6 +4,12 @@ matrix-synapse-py3 (1.58.0+nmu1) UNRELEASED; urgency=medium
 
  -- Synapse Packaging team <packages@matrix.org>  Wed, 30 Mar 2022 12:21:43 +0100
 
+matrix-synapse-py3 (1.57.1) stable; urgency=medium
+
+  * New synapse release 1.57.1.
+
+ -- Synapse Packaging team <packages@matrix.org>  Wed, 20 Apr 2022 15:27:21 +0100
+
 matrix-synapse-py3 (1.57.0) stable; urgency=medium
 
   * New synapse release 1.57.0.
diff --git a/poetry.lock b/poetry.lock
index a9f3e6101..95c1afc07 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -558,17 +558,20 @@ test = ["tox", "twisted", "aiounittest"]
 
 [[package]]
 name = "matrix-synapse-ldap3"
-version = "0.1.5"
+version = "0.2.0"
 description = "An LDAP3 auth provider for Synapse"
 category = "main"
 optional = true
-python-versions = "*"
+python-versions = ">=3.7"
 
 [package.dependencies]
 ldap3 = ">=2.8"
-service_identity = "*"
+service-identity = "*"
 Twisted = ">=15.1.0"
 
+[package.extras]
+dev = ["matrix-synapse", "tox", "ldaptor", "mypy (==0.910)", "types-setuptools", "black (==21.9b0)", "flake8 (==4.0.1)", "isort (==5.9.3)"]
+
 [[package]]
 name = "mccabe"
 version = "0.6.1"
@@ -2085,7 +2088,8 @@ matrix-common = [
     {file = "matrix_common-1.1.0.tar.gz", hash = "sha256:a8238748afc2b37079818367fed5156f355771b07c8ff0a175934f47e0ff3276"},
 ]
 matrix-synapse-ldap3 = [
-    {file = "matrix-synapse-ldap3-0.1.5.tar.gz", hash = "sha256:9fdf8df7c8ec756642aa0fea53b31c0b2f1924f70d7f049a2090b523125456fe"},
+    {file = "matrix-synapse-ldap3-0.2.0.tar.gz", hash = "sha256:91a0715b43a41ec3033244174fca20846836da98fda711fb01687f7199eecd2e"},
+    {file = "matrix_synapse_ldap3-0.2.0-py3-none-any.whl", hash = "sha256:0128ca7c3058987adc2e8a88463bb46879915bfd3d373309632813b353e30f9f"},
 ]
 mccabe = [
     {file = "mccabe-0.6.1-py2.py3-none-any.whl", hash = "sha256:ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42"},
diff --git a/pyproject.toml b/pyproject.toml
index c04857b79..c7f3e20fe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ skip_gitignore = true
 
 [tool.poetry]
 name = "matrix-synapse"
-version = "1.57.0"
+version = "1.57.1"
 description = "Homeserver for the Matrix decentralised comms protocol"
 authors = ["Matrix.org Team and Contributors <packages@matrix.org>"]
 license = "Apache-2.0"