diff --git a/pica-mattermost/Dockerfile b/pica-mattermost/Dockerfile
index 5daa5341a244c7ffe98832048deb7ce3bed37ed7..ce14970828be85fd6424c9f3e9ee20b18cfe7c60 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=5.31.0
+ENV MM_VERSION=5.31.1
 # 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 40d5c7c8e8075525d3f972b07a98b319f2211b61..9c24aec818439b10f9751a3336666ddf3abd1019 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:5.31.0
+    image: registry.picasoft.net/pica-mattermost:5.31.1
     build: .
     container_name: mattermost-app
     volumes: