diff --git a/matrix-synapse/Chart.yaml b/matrix-synapse/Chart.yaml
index f34e6ec..558d897 100644
--- a/matrix-synapse/Chart.yaml
+++ b/matrix-synapse/Chart.yaml
@@ -17,6 +17,6 @@ dependencies:
     repository: https://charts.bitnami.com/bitnami
     condition: postgresql.enabled
   - name: redis
-    version: ^17.3.17
+    version: ^18.0.0
     repository: https://charts.bitnami.com/bitnami
     condition: redis.enabled