diff --git a/webserver/docker_gitlab/templates/docker-compose.yml b/webserver/docker_gitlab/templates/docker-compose.yml
index 793d10fb78f3d47077d600c610becdc3dbe2916d..0ef35cbc83ec37ef57d3ed127f00be133a830313 100644
--- a/webserver/docker_gitlab/templates/docker-compose.yml
+++ b/webserver/docker_gitlab/templates/docker-compose.yml
@@ -5,7 +5,7 @@ services:
 
   app:
 
-    image: gitlab/gitlab-ce:15.8.1-ce.0
+    image: gitlab/gitlab-ce:15.9.3-ce.0
     restart: always
     ports:
       - "444:22"
diff --git a/webserver/docker_hackmd/templates/docker-compose.yml b/webserver/docker_hackmd/templates/docker-compose.yml
index 83640ce299a4286feaffd56f1d662c3ab7b140eb..192f720d2afab346df15741196fe1e90312d7a3a 100644
--- a/webserver/docker_hackmd/templates/docker-compose.yml
+++ b/webserver/docker_hackmd/templates/docker-compose.yml
@@ -3,7 +3,7 @@ version: "3"
 services:
 
   app:
-    image: quay.io/hedgedoc/hedgedoc:1.9.6-debian
+    image: quay.io/hedgedoc/hedgedoc:1.9.7-debian
     restart: always
     depends_on:
       - db
@@ -35,7 +35,7 @@ services:
       - default
       - web
 
-
+  # do not upgrade to 10.11.2
   db:
     image: mariadb:10.5.13
     restart: always
diff --git a/webserver/docker_icinga/templates/Dockerfile b/webserver/docker_icinga/templates/Dockerfile
index 62cf7875fa2ae30bd02e45094af639247b853c07..093fec9328bbfc219be695b2135389e092e8999a 100644
--- a/webserver/docker_icinga/templates/Dockerfile
+++ b/webserver/docker_icinga/templates/Dockerfile
@@ -1,4 +1,4 @@
-FROM jordan/icinga2:2.13.5
+FROM jordan/icinga2:2.13.6
 
 # Install additional Packages
 RUN apt-get update \
diff --git a/webserver/docker_matrix/templates/docker-compose.yml b/webserver/docker_matrix/templates/docker-compose.yml
index 78a3e274a6f9cc545b4807d39c7a4231fe201fc3..25c55decf8bf27258a59802ff2ea7834a68f2e77 100644
--- a/webserver/docker_matrix/templates/docker-compose.yml
+++ b/webserver/docker_matrix/templates/docker-compose.yml
@@ -24,7 +24,7 @@ services:
 
   synapse:
 
-    image: matrixdotorg/synapse:v1.73.0
+    image: matrixdotorg/synapse:v1.78.0
     restart: always
     cpu_count: "1"
     cpuset: "0"
@@ -34,7 +34,7 @@ services:
     volumes:
       - /srv/matrix/synapse-data/:/data
       # Python version can be found in the dockerfile: https://github.com/matrix-org/synapse/blob/develop/docker/Dockerfile check for tag to get the correct version
-      - /srv/matrix/rest_auth_provider.py:/usr/local/lib/python3.9/site-packages/rest_auth_provider.py
+      - /srv/matrix/rest_auth_provider.py:/usr/local/lib/python3.11/site-packages/rest_auth_provider.py
     environment:
       SYNAPSE_CONFIG_PATH: "/data/homeserver.yaml"
       TZ: "Europe/Berlin"