diff --git a/CHANGELOG.md b/CHANGELOG.md
index d065724d..dd70f7c6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+## v2024.1-beta2.security1
+This is a security hotfix release. It's identical to v2024.1-beta2, except for referencing an updated version of the `System.Text.Json` dependency, fixing a Denial of Service vulnerability ([GHSA-hh2w-p6rv-4g7w](https://github.com/advisories/GHSA-hh2w-p6rv-4g7w)). Upgrading is strongly recommended for all server operators.
+
+### Backend
+- Updated System.Text.Json to 8.0.4 (addressing [GHSA-hh2w-p6rv-4g7w](https://github.com/advisories/GHSA-hh2w-p6rv-4g7w))
+
+### Attribution
+This release was made possible by project contributors: Laura Hausmann
+
 ## v2024.1-beta2
 This release contains various features & bugfixes, including a security issue. Upgrading is strongly recommended for all server operators.
 
diff --git a/Iceshrimp.Backend/Iceshrimp.Backend.csproj b/Iceshrimp.Backend/Iceshrimp.Backend.csproj
index 69062cc9..496dc32e 100644
--- a/Iceshrimp.Backend/Iceshrimp.Backend.csproj
+++ b/Iceshrimp.Backend/Iceshrimp.Backend.csproj
@@ -7,7 +7,7 @@
         <InvariantGlobalization>true</InvariantGlobalization>
         <SatelliteResourceLanguages>none</SatelliteResourceLanguages>
         <VersionPrefix>2024.1</VersionPrefix>
-        <VersionSuffix>beta2</VersionSuffix>
+        <VersionSuffix>beta2.security1</VersionSuffix>
         <UseCurrentRuntimeIdentifier>true</UseCurrentRuntimeIdentifier>
         <PublishTrimmed>false</PublishTrimmed>
         <GarbageCollectionAdaptationMode>1</GarbageCollectionAdaptationMode>