diff --git a/docker-compose.yml b/docker-compose.yml
index 5f4f36e4453b0ebc467af1a94ffedf5bfa04b38c..3847761a425256791601895ee9bf2136c8d7ef03 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,7 +1,7 @@
 version: "3.9"
 services:
   maxima:
-    image: goemaxima:${STACKMAXIMA_VERSION:-2020120600}-dev
+    image: goemaxima:${STACKMAXIMA_VERSION:-2021120900}-dev
     ports:
       - 8765:8080
     tmpfs: