diff --git a/docker-compose-otel.yml b/docker-compose-otel.yml
index 1bd97d5..61bf544 100644
--- a/docker-compose-otel.yml
+++ b/docker-compose-otel.yml
@@ -19,7 +19,7 @@ services:
 
   # The Grafana dashboarding server.
   grafana:
-    image: grafana/grafana:12.3.1
+    image: grafana/grafana:12.4.0@sha256:b0ae311af06228bcfd4a620504b653db80f5b91e94dc3dc2a5b7dab202bcde20
     volumes:
       - "./grafana/definitions:/var/lib/grafana/dashboards"
       - "./grafana/provisioning:/etc/grafana/provisioning"
diff --git a/docker-compose.yml b/docker-compose.yml
index e0f075e..1b0b601 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -28,7 +28,7 @@ services:
 
   # The Grafana dashboarding server.
   grafana:
-    image: grafana/grafana:12.3.1
+    image: grafana/grafana:12.4.0@sha256:b0ae311af06228bcfd4a620504b653db80f5b91e94dc3dc2a5b7dab202bcde20
     volumes:
       - "./grafana/definitions:/var/lib/grafana/dashboards"
       - "./grafana/provisioning:/etc/grafana/provisioning"