diff --git a/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2 b/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2
index 393dfa5..5a489a5 100644
--- a/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2
@@ -15,7 +15,7 @@ services:
       - pretalx_net
 
   redis:
-    image: docker.io/library/redis:8.8.0
+    image: docker.io/library/redis:8.6.3
     restart: unless-stopped
     volumes:
       - redis:/data
diff --git a/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2 b/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
index 5de121b..11593ce 100644
--- a/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
@@ -13,7 +13,7 @@ services:
     restart: unless-stopped
 
   redis:
-    image: docker.io/library/redis:8.8.0
+    image: docker.io/library/redis:8.6.3
     ports:
       - "6379:6379"
     volumes: