diff --git a/pica-mattermost/Dockerfile b/pica-mattermost/Dockerfile
index 925f2b1119e3aa5a8f4a7326109356f22725d623..93682d5e09c5e44994b25b9cb09fe4dc823e5450 100644
--- a/pica-mattermost/Dockerfile
+++ b/pica-mattermost/Dockerfile
@@ -4,7 +4,7 @@ FROM alpine:3.11
 ENV PATH="/mattermost/bin:${PATH}"
 
 # Picasoft : change these values. The team version is used by default
-ENV MM_VERSION=5.19.0
+ENV MM_VERSION=5.20.1
 # Get these ids with the output of `id mattermost` on the VM hosting the app
 ARG PUID=5000
 ARG PGID=5000