diff --git a/CHANGELOG.md b/CHANGELOG.md
index ebac236..28a915b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Changed
+
++ Updated hydrus server version
+
 ## [4.2.0] - 2020-12-09
 
 ### Changed
diff --git a/README.md b/README.md
index 78332e0..46bf57e 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 This is a simple Debian-based Docker setup for running
 [hydrus server][hydrus-server] from source.
 
-The latest build runs [hydrus server version 421][hydrus-server-version].
+The latest build runs [hydrus server version 426][hydrus-server-version].
 
 Due to time constraints and the fact that changes to hydrus server are
 infrequent, a new release of this Docker setup is only made roughly
@@ -40,7 +40,7 @@ By default, this will pull the latest build. To specify an image with a
 specific version of hydrus server, provide the version number as tag, e.g.:
 
 ```zsh
-user@local:~$ docker pull mtbl/hydrus-server-docker:421
+user@local:~$ docker pull mtbl/hydrus-server-docker:426
 ```
 
 Alternatively, you can also build the image yourself:
@@ -162,13 +162,13 @@ You are welcome to help out!
 [AGPLv3](LICENSE) © imtbl
 
 [hydrus-server]: http://hydrusnetwork.github.io/hydrus/
-[hydrus-server-version]: https://github.com/hydrusnetwork/hydrus/releases/tag/v421
+[hydrus-server-version]: https://github.com/hydrusnetwork/hydrus/releases/tag/v426
 [docker-hub]: https://hub.docker.com/r/mtbl/hydrus-server-docker/
 [docker-hub-tags]: https://hub.docker.com/r/mtbl/hydrus-server-docker/tags/
 [docker]: https://www.docker.com/
 [semantic-versioning]: https://semver.org/
 
-[hydrus-server-badge]: https://img.shields.io/badge/hydrus%20server-version%20421-blue.svg
+[hydrus-server-badge]: https://img.shields.io/badge/hydrus%20server-version%20426-blue.svg
 
 [travis]: https://travis-ci.com/imtbl/hydrus-server-docker
 [travis-badge]: https://travis-ci.com/imtbl/hydrus-server-docker.svg
diff --git a/hydrus b/hydrus
index c3100f7..1acdc25 160000
--- a/hydrus
+++ b/hydrus
@@ -1 +1 @@
-Subproject commit c3100f7a881b8a8b9ab4dd238d2696500c343d45
+Subproject commit 1acdc258e5bb2ae22f5eafaf3dac8d9265dba5e2