diff --git a/pica-mattermost/Dockerfile b/pica-mattermost/Dockerfile
index f3ba8369a2fc95c0ccdc794c53f367ac47d9ddf2..5daa5341a244c7ffe98832048deb7ce3bed37ed7 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=5.30.1
+ENV MM_VERSION=5.31.0
 # Get these ids with the output of `id mattermost` on the VM hosting the app
 ARG PUID=5000
 ARG PGID=5000
diff --git a/pica-mattermost/docker-compose.yml b/pica-mattermost/docker-compose.yml
index 993e5e34bfb3f859ea631b0d0f671badfab6a827..40d5c7c8e8075525d3f972b07a98b319f2211b61 100644
--- a/pica-mattermost/docker-compose.yml
+++ b/pica-mattermost/docker-compose.yml
@@ -17,7 +17,7 @@ volumes:
 
 services:
   mattermost:
-    image: registry.picasoft.net/pica-mattermost:5.29.0
+    image: registry.picasoft.net/pica-mattermost:5.31.0
     build: .
     container_name: mattermost-app
     volumes: