diff --git a/synkronus-portal/docker-compose.yml b/synkronus-portal/docker-compose.yml
index a4fb17fc9..de409f0f0 100644
--- a/synkronus-portal/docker-compose.yml
+++ b/synkronus-portal/docker-compose.yml
@@ -13,7 +13,7 @@
 services:
   # PostgreSQL database
   postgres:
-    image: postgres:17
+    image: postgres:18
     container_name: synkronus-postgres
     environment:
       POSTGRES_USER: postgres
diff --git a/synkronus/docker-compose.dev.yml b/synkronus/docker-compose.dev.yml
index cb734b3be..c0fecf679 100644
--- a/synkronus/docker-compose.dev.yml
+++ b/synkronus/docker-compose.dev.yml
@@ -4,7 +4,7 @@
 
 services:
   postgres:
-    image: postgres:17
+    image: postgres:18
     container_name: synkronus-postgres-dev
     environment:
       POSTGRES_USER: postgres
diff --git a/synkronus/docker-compose.example.yml b/synkronus/docker-compose.example.yml
index ab241954f..1368d5fe3 100644
--- a/synkronus/docker-compose.example.yml
+++ b/synkronus/docker-compose.example.yml
@@ -71,7 +71,7 @@ services:
 
   # PostgreSQL database
   postgres:
-    image: postgres:17
+    image: postgres:18
     environment:
       # Root PostgreSQL user and password (used to create application databases)
       POSTGRES_USER: postgres