diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3c43fd06..1ee0dece 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,6 +7,7 @@ on:
 
 env:
   DATABASE_URL: ${{ secrets.DATABASE_URL_FOR_PRISMA_SQL_GENERATION }}
+  DIRECT_URL: ${{ secrets.DATABASE_URL_FOR_PRISMA_SQL_GENERATION }}
   NEXT_PUBLIC_API_ENDPOINT: "sample"
   NEXT_PUBLIC_FIREBASE_API_KEY: "sample"
   NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN: "sample"
diff --git a/Makefile b/Makefile
index 08b771ca..8d379037 100644
--- a/Makefile
+++ b/Makefile
@@ -3,6 +3,7 @@ default: start
 LOCAL_DB := postgres://user:password@localhost:5432/database
 
 test: export DATABASE_URL=$(LOCAL_DB)
+test: export DIRECT_URL=$(LOCAL_DB)
 test: export UNSAFE_SKIP_AUTH=1
 test: export FIREBASE_PROJECT_ID=mock-proj
 test: export CORS_ALLOW_ORIGINS=http://localhost:3000,https://localhost:5173
@@ -13,6 +14,7 @@ test: dev-db
 
 ## server/.envをDATABASE_URL=postgres://user:password@localhost:5432/databaseにしてから行う
 dev-db: export DATABASE_URL=$(LOCAL_DB)
+dev-db: export DIRECT_URL=$(LOCAL_DB)
 dev-db: export NEVER_LOAD_DOTENV=1
 dev-db:
 	docker stop postgres || true
@@ -29,7 +31,7 @@ dev-db:
 		sleep 1; \
 	done
 	@echo "PostgreSQL is ready. Running seed..."
-	@cd server; bunx prisma generate; bunx prisma db push
+	@cd server; bunx prisma generate --sql; bunx prisma db push
 	@bun run seed
 	@echo "Seeding completed."
 
diff --git a/server/.env.sample b/server/.env.sample
index 35ee3a26..b5343ada 100644
--- a/server/.env.sample
+++ b/server/.env.sample
@@ -1,7 +1,8 @@
 # Database
 # DATABASE_URL=postgres://johndoe:supersecretpassword@example.com:5432/dbname
 # below can be used for docker db created via `make dev-db`
-DATABASE_URL=postgres://user:password@localhost:5432/database
+DATABASE_URL=postgres://user:password@localhost:6543/database
+DIRECT_URL=postgres://user:password@localhost:5432/database
 
 # CORS allow origins, separated by "," | no space is allowed before/after ","
 CORS_ALLOW_ORIGINS=http://localhost:3000,http://localhost:5173
diff --git a/server/prisma/schema.prisma b/server/prisma/schema.prisma
index 339a379e..ee2c650f 100644
--- a/server/prisma/schema.prisma
+++ b/server/prisma/schema.prisma
@@ -8,6 +8,8 @@ generator client {
 datasource db {
   provider = "postgresql"
   url      = env("DATABASE_URL")
+  // https://github.com/prisma/prisma/discussions/25106#discussioncomment-10500102
+  directUrl  = env("DIRECT_URL")
 }
 
 enum Day {