diff --git a/metadata/spam.blocker.yml b/metadata/spam.blocker.yml
index 3d84ac1561..871722c2c8 100644
--- a/metadata/spam.blocker.yml
+++ b/metadata/spam.blocker.yml
@@ -334,9 +334,16 @@ Builds:
     gradle:
       - yes
 
+  - versionName: '4.21'
+    versionCode: 421
+    commit: 9d1d951af1d716e68333d48a482197bfb0d01244
+    subdir: app
+    gradle:
+      - yes
+
 AllowedAPKSigningKeys: 7b1ce727856f3427eab1fadfad6c9730cd4e6ba201661547f009206377dffb58
 
 AutoUpdateMode: Version
 UpdateCheckMode: Tags
-CurrentVersion: '4.20'
-CurrentVersionCode: 420
+CurrentVersion: '4.21'
+CurrentVersionCode: 421