diff --git a/.project/infrastructure/services/postgresql-18/README.md b/.project/infrastructure/services/postgresql-18/README.md
index f1c61db..c3d09b9 100644
--- a/.project/infrastructure/services/postgresql-18/README.md
+++ b/.project/infrastructure/services/postgresql-18/README.md
@@ -14,7 +14,7 @@ The sample binds PostgreSQL to `127.0.0.1:5432` with:
 - database: `dew`
 - user: `dew`
 - password: `dew_dev_password`
-- data volume: `dew_postgresql_18_data`
+- data volume: `dew_postgresql-18_data`
 
 Stop it with:
 
diff --git a/.project/infrastructure/services/postgresql-18/dew_postgresql_18.container b/.project/infrastructure/services/postgresql-18/dew_postgresql-18.container
similarity index 83%
rename from .project/infrastructure/services/postgresql-18/dew_postgresql_18.container
rename to .project/infrastructure/services/postgresql-18/dew_postgresql-18.container
index 7e69df8..cfb18e9 100644
--- a/.project/infrastructure/services/postgresql-18/dew_postgresql_18.container
+++ b/.project/infrastructure/services/postgresql-18/dew_postgresql-18.container
@@ -5,12 +5,12 @@ After=network-online.target
 
 [Container]
 Image=docker.io/library/postgres:18
-ContainerName=dew_postgresql_18
+ContainerName=dew_postgresql-18
 Environment=POSTGRES_DB=dew
 Environment=POSTGRES_USER=dew
 Environment=POSTGRES_PASSWORD=dew_dev_password
 PublishPort=127.0.0.1:5432:5432
-Volume=dew_postgresql_18_data:/var/lib/postgresql/data:Z
+Volume=dew_postgresql-18_data:/var/lib/postgresql/data:Z
 HealthCmd=pg_isready -U dew -d dew
 HealthInterval=10s
 HealthTimeout=5s
diff --git a/.project/infrastructure/services/postgresql-18/dew_postgresql_18.container.d/.gitkeep b/.project/infrastructure/services/postgresql-18/dew_postgresql-18.container.d/.gitkeep
similarity index 100%
rename from .project/infrastructure/services/postgresql-18/dew_postgresql_18.container.d/.gitkeep
rename to .project/infrastructure/services/postgresql-18/dew_postgresql-18.container.d/.gitkeep
diff --git a/.project/infrastructure/services/postgresql-18/dew_postgresql_18.profiles.d/.gitkeep b/.project/infrastructure/services/postgresql-18/dew_postgresql-18.profiles.d/.gitkeep
similarity index 100%
rename from .project/infrastructure/services/postgresql-18/dew_postgresql_18.profiles.d/.gitkeep
rename to .project/infrastructure/services/postgresql-18/dew_postgresql-18.profiles.d/.gitkeep
diff --git a/.project/infrastructure/services/postgresql-18/manifest.yaml b/.project/infrastructure/services/postgresql-18/manifest.yaml
index bc256db..2ec9f0a 100644
--- a/.project/infrastructure/services/postgresql-18/manifest.yaml
+++ b/.project/infrastructure/services/postgresql-18/manifest.yaml
@@ -1,16 +1,16 @@
 service:
   id: postgresql-18
   name: PostgreSQL 18
-  unit: dew_postgresql_18.service
-  container_name: dew_postgresql_18
+  unit: dew_postgresql-18.service
+  container_name: dew_postgresql-18
 
 runtime:
   type: podman-quadlet
 
 container:
-  file: dew_postgresql_18.container
-  dropins_dir: dew_postgresql_18.container.d
-  profiles_dir: dew_postgresql_18.profiles.d
+  file: dew_postgresql-18.container
+  dropins_dir: dew_postgresql-18.container.d
+  profiles_dir: dew_postgresql-18.profiles.d
 
 schemas:
   configure: schemas/configure.schema.json
diff --git a/.project/infrastructure/services/postgresql-18/schemas/configure.schema.json b/.project/infrastructure/services/postgresql-18/schemas/configure.schema.json
index de1b555..33f30b3 100644
--- a/.project/infrastructure/services/postgresql-18/schemas/configure.schema.json
+++ b/.project/infrastructure/services/postgresql-18/schemas/configure.schema.json
@@ -30,7 +30,7 @@
     "volume": {
       "type": "string",
       "minLength": 1,
-      "default": "dew_postgresql_18_data"
+      "default": "dew_postgresql-18_data"
     }
   }
 }
diff --git a/.project/kanban/done/DEW-0033.md b/.project/kanban/done/DEW-0033.md
new file mode 100644
index 0000000..3ce777f
--- /dev/null
+++ b/.project/kanban/done/DEW-0033.md
@@ -0,0 +1,8 @@
+---
+id: DEW-0033
+title: Use hyphenated PostgreSQL sample runtime names
+type: task
+created: 2026-05-05T03:40:20.957347Z
+---
+
+Rename the PostgreSQL 18 infra sample runtime artifacts so the dew_ prefix is followed by the hyphenated service id postgresql-18.