diff --git a/deploy/compose.yml b/deploy/compose.yml
index e2213575..f59edc63 100644
--- a/deploy/compose.yml
+++ b/deploy/compose.yml
@@ -23,7 +23,7 @@ services:
     # would let a long-running recorder silently jump MediaMTX versions on any restart/re-pull.
     # To bump: pick a release, then `docker buildx imagetools inspect bluenviron/mediamtx:<ver>`
     # for the new digest (see docs/SUPPLY-CHAIN.md).
-    image: bluenviron/mediamtx:1.20.1@sha256:1b029d11049be75630e9b73bb0d5f47b08a7db4eaee89a80bf8f53bc40e56414
+    image: bluenviron/mediamtx:1.21.1@sha256:5ce2a948eb68df06ce2e13870db8df8e30d516ac4dc40e04bfe8aee3bdf7be40
     restart: unless-stopped
     network_mode: host
     volumes: