diff --git a/docker/Linux-GraalVM-JDK21/compose.yaml b/docker/Linux-GraalVM-JDK21/compose.yaml
index 07b6db732..c8b8e1d1e 100644
--- a/docker/Linux-GraalVM-JDK21/compose.yaml
+++ b/docker/Linux-GraalVM-JDK21/compose.yaml
@@ -3,7 +3,6 @@
 #
 # docker compose -f path/to/compose.yaml up --exit-code-from cantaloupe
 #
-version: "3"
 services:
   cantaloupe:
     build: