diff --git a/CHANGES.md b/CHANGES.md
index 0ef05b9ec..bdb6a796e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -15,6 +15,10 @@
 - Clients can request the `federation` `event_format` when creating filters
 - Many under the hood improvements for [MSC4014: Pseudonymous Identities](https://github.com/matrix-org/matrix-spec-proposals/blob/kegan/pseudo-ids/proposals/4014-pseudonymous-identities.md)
 
+### Other
+
+- Dendrite now requires Go 1.20 if building from source
+
 ## Dendrite 0.13.2 (2023-08-23)
 
 ### Fixes:
diff --git a/cmd/dendrite-demo-yggdrasil/README.md b/cmd/dendrite-demo-yggdrasil/README.md
index 14fc3a2db..23304c214 100644
--- a/cmd/dendrite-demo-yggdrasil/README.md
+++ b/cmd/dendrite-demo-yggdrasil/README.md
@@ -1,6 +1,6 @@
 # Yggdrasil Demo
 
-This is the Dendrite Yggdrasil demo! It's easy to get started - all you need is Go 1.18 or later.
+This is the Dendrite Yggdrasil demo! It's easy to get started - all you need is Go 1.20 or later.
 
 To run the homeserver, start at the root of the Dendrite repository and run:
 
diff --git a/docs/installation/1_planning.md b/docs/installation/1_planning.md
index 354003aef..37ca5702a 100644
--- a/docs/installation/1_planning.md
+++ b/docs/installation/1_planning.md
@@ -59,7 +59,7 @@ In order to install Dendrite, you will need to satisfy the following dependencie
 
 ### Go
 
-At this time, Dendrite supports being built with Go 1.18 or later. We do not support building
+At this time, Dendrite supports being built with Go 1.20 or later. We do not support building
 Dendrite with older versions of Go than this. If you are installing Go using a package manager,
 you should check (by running `go version`) that you are using a suitable version before you start.
 
diff --git a/go.mod b/go.mod
index 3176a8b7b..c2ab105b1 100644
--- a/go.mod
+++ b/go.mod
@@ -143,4 +143,4 @@ require (
 	modernc.org/token v1.0.1 // indirect
 )
 
-go 1.18
+go 1.20