diff --git a/manifests/applications/dendrite/kustomization.yaml b/manifests/applications/dendrite/kustomization.yaml
index da7fb70f..e84235de 100644
--- a/manifests/applications/dendrite/kustomization.yaml
+++ b/manifests/applications/dendrite/kustomization.yaml
@@ -31,4 +31,4 @@ images:
 
   - name: sliding-sync
     newName: ghcr.io/matrix-org/sliding-sync
-    newTag: v0.99.18
+    newTag: v0.99.19