diff --git a/.forgejo/workflows/lint.yaml b/.forgejo/workflows/lint.yaml
index a0fd1d8..a867c13 100644
--- a/.forgejo/workflows/lint.yaml
+++ b/.forgejo/workflows/lint.yaml
@@ -10,7 +10,7 @@ jobs:
     name: Ansible Lint
     runs-on: docker
     steps:
-      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
       - name: Install pip
         run: |
           apt update
diff --git a/resources/chaosknoten/keycloak/docker_compose/compose.yaml.j2 b/resources/chaosknoten/keycloak/docker_compose/compose.yaml.j2
index c806687..af766ea 100644
--- a/resources/chaosknoten/keycloak/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/keycloak/docker_compose/compose.yaml.j2
@@ -46,7 +46,7 @@ services:
       - "8080:8080"
 
   db:
-    image: docker.io/library/postgres:18.0@sha256:7499fa0ed6b106d3b513fe792d673f1b496a539a541674fdcd9539c13c6427f3
+    image: docker.io/library/postgres:18.0@sha256:1ffc019dae94eca6b09a49ca67d37398951346de3c3d0cfe23d8d4ca33da83fb
     restart: unless-stopped
     networks:
       - keycloak
diff --git a/resources/chaosknoten/lists/docker_compose/compose.yaml b/resources/chaosknoten/lists/docker_compose/compose.yaml
index 7464699..d97bf1b 100644
--- a/resources/chaosknoten/lists/docker_compose/compose.yaml
+++ b/resources/chaosknoten/lists/docker_compose/compose.yaml
@@ -56,7 +56,7 @@ services:
       - POSTGRES_DB=mailmandb
       - POSTGRES_USER=mailman
       - POSTGRES_PASSWORD=wvQjbMRnwFuxGEPz
-    image: docker.io/library/postgres:18-alpine@sha256:0ce0d1fa5bf54b7b338e09829ab76b479dbd0702da50bf0cdf5c258208e47f40
+    image: docker.io/library/postgres:18-alpine@sha256:48c8ad3a7284b82be4482a52076d47d879fd6fb084a1cbfccbd551f9331b0e40
     volumes:
       - /opt/mailman/database:/var/lib/postgresql/data
     networks:
diff --git a/resources/chaosknoten/pad/docker_compose/compose.yaml.j2 b/resources/chaosknoten/pad/docker_compose/compose.yaml.j2
index 8ce566f..2e68fd8 100644
--- a/resources/chaosknoten/pad/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/pad/docker_compose/compose.yaml.j2
@@ -3,7 +3,7 @@
 
 services:
   database:
-    image: docker.io/library/postgres:18-alpine@sha256:0ce0d1fa5bf54b7b338e09829ab76b479dbd0702da50bf0cdf5c258208e47f40
+    image: docker.io/library/postgres:18-alpine@sha256:48c8ad3a7284b82be4482a52076d47d879fd6fb084a1cbfccbd551f9331b0e40
     environment:
       - "POSTGRES_USER=hedgedoc"
       - "POSTGRES_PASSWORD={{ secret__hedgedoc_db_password }}"
diff --git a/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2 b/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2
index 573cf08..25a1e7f 100644
--- a/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/pretalx/docker_compose/compose.yaml.j2
@@ -3,7 +3,7 @@
 
 services:
   database:
-    image: docker.io/library/postgres:18-alpine@sha256:0ce0d1fa5bf54b7b338e09829ab76b479dbd0702da50bf0cdf5c258208e47f40
+    image: docker.io/library/postgres:18-alpine@sha256:48c8ad3a7284b82be4482a52076d47d879fd6fb084a1cbfccbd551f9331b0e40
     environment:
       - "POSTGRES_USER=pretalx"
       - "POSTGRES_PASSWORD={{ secret__pretalx_db_password }}"
diff --git a/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2 b/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
index e9f0171..60fc2b1 100644
--- a/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
+++ b/resources/chaosknoten/tickets/docker_compose/compose.yaml.j2
@@ -1,7 +1,7 @@
 ---
 services:
   database:
-    image: docker.io/library/postgres:18-alpine@sha256:0ce0d1fa5bf54b7b338e09829ab76b479dbd0702da50bf0cdf5c258208e47f40
+    image: docker.io/library/postgres:18-alpine@sha256:48c8ad3a7284b82be4482a52076d47d879fd6fb084a1cbfccbd551f9331b0e40
     environment:
       - "POSTGRES_USER=pretix"
       - "POSTGRES_PASSWORD={{ secret__pretix_db_password }}"