diff --git a/logging/docker-compose.yaml b/logging/docker-compose.yaml
index d0229e8..2b5811d 100644
--- a/logging/docker-compose.yaml
+++ b/logging/docker-compose.yaml
@@ -41,8 +41,10 @@ services:
       - logging-nw
 
   grafana:
-    # Pinned for the same reason as loki — see comment there.
-    image: grafana/grafana:10.4.2
+    # Keep a fixed release for reproducible Portainer redeploys. Grafana 13.1.0
+    # is supported by the host's Fedora 44 / kernel 7.1 runtime; the old 10.4.2
+    # pin was only required by the retired Fedora 35 / kernel 5.16 host.
+    image: grafana/grafana:13.1.0
     container_name: grafana
     restart: unless-stopped
     depends_on: