diff --git a/compose.yml b/compose.yml
index 9452fa5..bfbb435 100644
--- a/compose.yml
+++ b/compose.yml
@@ -1,6 +1,6 @@
 services:
   app:
-    image: gristlabs/grist-oss:1.7.19
+    image: gristlabs/grist-oss:1.7.21@sha256:73e4815fcc1b5dfff6cd47b37a3ec2bb80d3c70b27efba4c8714a57781d414d1
     networks:
       - proxy
       - internal