diff --git a/pica-mattermost/Dockerfile b/pica-mattermost/Dockerfile
index 2256c4e237408c76b3f0a2a9d8aaef16668f18c2..e7bcef344d78231b382f1a224d9943bd9a6e4598 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=5.33.2
+ENV MM_VERSION=5.33.3
 # 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 65cb9777197403c14813060313d3e66a86b53ad0..e28c7c2fd11c9409ec0a9121145ac626034a0353 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:5.33.2
+    image: registry.picasoft.net/pica-mattermost:5.33.3
     build: .
     container_name: mattermost-app
     volumes: