diff --git a/matrix-synapse/values.yaml b/matrix-synapse/values.yaml
index 5bf991f..cfdd0a2 100644
--- a/matrix-synapse/values.yaml
+++ b/matrix-synapse/values.yaml
@@ -613,7 +613,7 @@ wellknown:
   image:
     registry: docker.io
     repository: library/nginx
-    tag: 1.25.3
+    tag: 1.25.4
     pullPolicy: IfNotPresent
 
   replicaCount: 1