diff --git a/stacks/lab/compose.yaml b/stacks/lab/compose.yaml
index bf95aff0..55dda045 100644
--- a/stacks/lab/compose.yaml
+++ b/stacks/lab/compose.yaml
@@ -188,7 +188,7 @@ services:
   # ---------------------------------------------------------------------------
   loki:
     <<: *service-defaults
-    image: grafana/loki:3.7.8@sha256:1107dd5274e0ada47e42472b7a7e71f3b2a2fe878878108f3e2f9e51528f0193
+    image: grafana/loki:3.7.9@sha256:0db216b630ae1f348a1584c67f3cead8b4c1fc839169a39501db664744158e28
     container_name: lab-loki
     user: "10001:10001"
     # The estate's block, as on prometheus above (#845), including the /tmp
@@ -442,7 +442,7 @@ services:
 
   alloy:
     <<: *service-defaults
-    image: grafana/alloy:v1.20.1@sha256:2aa2099af76c0098d4af7a4d6e48f86cb66dc1a000222ad927a1c67c6542d13f
+    image: grafana/alloy:v1.21.1@sha256:4039c971193053a84e53dd9ed3e7d4561c069256b024631cd3498a353ed7ece8
     container_name: lab-alloy
     pids_limit: 1024
     cap_drop: [ALL]