diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6ce7159..3d6857e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,9 @@
-# unreleased
+# v0.3.1 (2022-04-16)
 
 * Added emoji normalization for reactions in both directions to add/remove
   variation selector 16 as appropriate.
 * Added option to use [MSC2246] async media uploads.
+* Fixed custom fields in messages being unencrypted in history syncs.
 
 [MSC2246]: https://github.com/matrix-org/matrix-spec-proposals/pull/2246
 
diff --git a/main.go b/main.go
index 24a4be7..6b74fee 100644
--- a/main.go
+++ b/main.go
@@ -66,7 +66,7 @@ var (
 
 var (
 	// Version is the version number of the bridge. Changed manually when making a release.
-	Version = "0.3.0"
+	Version = "0.3.1"
 	// WAVersion is the version number exposed to WhatsApp. Filled in init()
 	WAVersion = ""
 	// VersionString is the bridge version, plus commit information. Filled in init() using the build-time values.