diff --git a/inventories/chaosknoten/host_vars/netbox.yaml b/inventories/chaosknoten/host_vars/netbox.yaml
index 2c68c17..c18efd5 100644
--- a/inventories/chaosknoten/host_vars/netbox.yaml
+++ b/inventories/chaosknoten/host_vars/netbox.yaml
@@ -1,5 +1,5 @@
 # renovate: datasource=github-releases depName=netbox packageName=netbox-community/netbox
-netbox__version: "v4.5.0"
+netbox__version: "v4.5.1"
 netbox__config: "{{ lookup('ansible.builtin.template', 'resources/chaosknoten/netbox/netbox/configuration.py.j2') }}"
 netbox__custom_pipeline_oidc_group_and_role_mapping: true
 
diff --git a/requirements.yml b/requirements.yml
index 6011bda..dffe9d3 100644
--- a/requirements.yml
+++ b/requirements.yml
@@ -1,11 +1,17 @@
 collections:
-  # Install a collection from Ansible Galaxy.
-  - name: debops.debops
-    version: ">=3.1.0"
-    source: https://galaxy.ansible.com
-  - name: community.sops
-    version: ">=2.2.4"
-    source: https://galaxy.ansible.com
-  - name: community.docker
-    version: ">=5.0.0"
-    source: https://galaxy.ansible.com
+  # debops.debops
+  - source: https://github.com/debops/debops
+    type: git
+    version: "v3.2.5"
+  # community.sops
+  - source: https://github.com/ansible-collections/community.sops
+    type: git
+    version: "2.2.7"
+  # community.docker
+  - source: https://github.com/ansible-collections/community.docker
+    type: git
+    version: "5.0.5"
+  # grafana.grafana
+  - source: https://github.com/grafana/grafana-ansible-collection
+    type: git
+    version: "6.0.6"
diff --git a/resources/chaosknoten/ntfy/docker_compose/compose.yaml.j2 b/resources/chaosknoten/ntfy/docker_compose/compose.yaml.j2
index 50df05d..6b5a8fc 100644
--- a/resources/chaosknoten/ntfy/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/ntfy/docker_compose/compose.yaml.j2
@@ -1,7 +1,7 @@
 ---
 services:
   ntfy:
-    image: docker.io/binwiederhier/ntfy:v2.15.0
+    image: docker.io/binwiederhier/ntfy:v2.16.0
     container_name: ntfy
     command:
       - serve
diff --git a/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2 b/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2
index 091d113..835ed50 100644
--- a/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2
@@ -33,7 +33,7 @@ services:
       - pretalx_net
 
   pretalx:
-    image: docker.io/pretalx/standalone:v2025.1.0
+    image: docker.io/pretalx/standalone:v2025.2.2
     entrypoint: gunicorn
     command:
       - "pretalx.wsgi"
@@ -78,7 +78,7 @@ services:
       - pretalx_net
 
   celery:
-    image: docker.io/pretalx/standalone:v2025.1.0
+    image: docker.io/pretalx/standalone:v2025.2.2
     command:
       - taskworker
     restart: unless-stopped