diff --git a/backend/src/prisma/prisma.service.ts b/backend/src/prisma/prisma.service.ts
index 92a83e3..806296d 100644
--- a/backend/src/prisma/prisma.service.ts
+++ b/backend/src/prisma/prisma.service.ts
@@ -1,12 +1,16 @@
 import { Injectable, OnModuleInit, OnModuleDestroy } from '@nestjs/common';
 import { PrismaClient } from '@prisma/client';
+import { PrismaPg } from '@prisma/adapter-pg';
+import { Pool } from 'pg';
 
 @Injectable()
 export class PrismaService extends PrismaClient implements OnModuleInit, OnModuleDestroy {
   constructor() {
-    // Prisma 7 требует явную передачу параметров в конструктор
-    // URL берется из prisma.config.ts, который использует env("DATABASE_URL")
-    super({} as any);
+    const connectionString = process.env.DATABASE_URL;
+    const pool = new Pool({ connectionString });
+    const adapter = new PrismaPg(pool);
+
+    super({ adapter });
   }
 
   async onModuleInit() {
diff --git a/package-lock.json b/package-lock.json
index 67a3f20..9b6442c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,10 +8,12 @@
       "name": "sto-k-odnomu-new-year",
       "version": "1.0.0",
       "dependencies": {
+        "@prisma/adapter-pg": "^7.2.0",
         "axios": "^1.13.2",
         "html2canvas": "^1.4.1",
         "html5-qrcode": "^2.3.8",
         "jspdf": "^3.0.4",
+        "pg": "^8.16.3",
         "qrcode": "^1.5.4",
         "react": "^18.2.0",
         "react-dom": "^18.2.0",
@@ -757,6 +759,32 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
+    "node_modules/@prisma/adapter-pg": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@prisma/adapter-pg/-/adapter-pg-7.2.0.tgz",
+      "integrity": "sha512-euIdQ13cRB2wZ3jPsnDnFhINquo1PYFPCg6yVL8b2rp3EdinQHsX9EDdCtRr489D5uhphcRk463OdQAFlsCr0w==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@prisma/driver-adapter-utils": "7.2.0",
+        "pg": "^8.16.3",
+        "postgres-array": "3.0.4"
+      }
+    },
+    "node_modules/@prisma/debug": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@prisma/debug/-/debug-7.2.0.tgz",
+      "integrity": "sha512-YSGTiSlBAVJPzX4ONZmMotL+ozJwQjRmZweQNIq/ER0tQJKJynNkRB3kyvt37eOfsbMCXk3gnLF6J9OJ4QWftw==",
+      "license": "Apache-2.0"
+    },
+    "node_modules/@prisma/driver-adapter-utils": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/@prisma/driver-adapter-utils/-/driver-adapter-utils-7.2.0.tgz",
+      "integrity": "sha512-gzrUcbI9VmHS24Uf+0+7DNzdIw7keglJsD5m/MHxQOU68OhGVzlphQRobLiDMn8CHNA2XN8uugwKjudVtnfMVQ==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@prisma/debug": "7.2.0"
+      }
+    },
     "node_modules/@rolldown/pluginutils": {
       "version": "1.0.0-beta.27",
       "resolved": "https://registry.npmjs.org/@rolldown/pluginutils/-/pluginutils-1.0.0-beta.27.tgz",
@@ -2073,6 +2101,104 @@
       "license": "MIT",
       "optional": true
     },
+    "node_modules/pg": {
+      "version": "8.16.3",
+      "resolved": "https://registry.npmjs.org/pg/-/pg-8.16.3.tgz",
+      "integrity": "sha512-enxc1h0jA/aq5oSDMvqyW3q89ra6XIIDZgCX9vkMrnz5DFTw/Ny3Li2lFQ+pt3L6MCgm/5o2o8HW9hiJji+xvw==",
+      "license": "MIT",
+      "dependencies": {
+        "pg-connection-string": "^2.9.1",
+        "pg-pool": "^3.10.1",
+        "pg-protocol": "^1.10.3",
+        "pg-types": "2.2.0",
+        "pgpass": "1.0.5"
+      },
+      "engines": {
+        "node": ">= 16.0.0"
+      },
+      "optionalDependencies": {
+        "pg-cloudflare": "^1.2.7"
+      },
+      "peerDependencies": {
+        "pg-native": ">=3.0.1"
+      },
+      "peerDependenciesMeta": {
+        "pg-native": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/pg-cloudflare": {
+      "version": "1.2.7",
+      "resolved": "https://registry.npmjs.org/pg-cloudflare/-/pg-cloudflare-1.2.7.tgz",
+      "integrity": "sha512-YgCtzMH0ptvZJslLM1ffsY4EuGaU0cx4XSdXLRFae8bPP4dS5xL1tNB3k2o/N64cHJpwU7dxKli/nZ2lUa5fLg==",
+      "license": "MIT",
+      "optional": true
+    },
+    "node_modules/pg-connection-string": {
+      "version": "2.9.1",
+      "resolved": "https://registry.npmjs.org/pg-connection-string/-/pg-connection-string-2.9.1.tgz",
+      "integrity": "sha512-nkc6NpDcvPVpZXxrreI/FOtX3XemeLl8E0qFr6F2Lrm/I8WOnaWNhIPK2Z7OHpw7gh5XJThi6j6ppgNoaT1w4w==",
+      "license": "MIT"
+    },
+    "node_modules/pg-int8": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/pg-int8/-/pg-int8-1.0.1.tgz",
+      "integrity": "sha512-WCtabS6t3c8SkpDBUlb1kjOs7l66xsGdKpIPZsg4wR+B3+u9UAum2odSsF9tnvxg80h4ZxLWMy4pRjOsFIqQpw==",
+      "license": "ISC",
+      "engines": {
+        "node": ">=4.0.0"
+      }
+    },
+    "node_modules/pg-pool": {
+      "version": "3.10.1",
+      "resolved": "https://registry.npmjs.org/pg-pool/-/pg-pool-3.10.1.tgz",
+      "integrity": "sha512-Tu8jMlcX+9d8+QVzKIvM/uJtp07PKr82IUOYEphaWcoBhIYkoHpLXN3qO59nAI11ripznDsEzEv8nUxBVWajGg==",
+      "license": "MIT",
+      "peerDependencies": {
+        "pg": ">=8.0"
+      }
+    },
+    "node_modules/pg-protocol": {
+      "version": "1.10.3",
+      "resolved": "https://registry.npmjs.org/pg-protocol/-/pg-protocol-1.10.3.tgz",
+      "integrity": "sha512-6DIBgBQaTKDJyxnXaLiLR8wBpQQcGWuAESkRBX/t6OwA8YsqP+iVSiond2EDy6Y/dsGk8rh/jtax3js5NeV7JQ==",
+      "license": "MIT"
+    },
+    "node_modules/pg-types": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/pg-types/-/pg-types-2.2.0.tgz",
+      "integrity": "sha512-qTAAlrEsl8s4OiEQY69wDvcMIdQN6wdz5ojQiOy6YRMuynxenON0O5oCpJI6lshc6scgAY8qvJ2On/p+CXY0GA==",
+      "license": "MIT",
+      "dependencies": {
+        "pg-int8": "1.0.1",
+        "postgres-array": "~2.0.0",
+        "postgres-bytea": "~1.0.0",
+        "postgres-date": "~1.0.4",
+        "postgres-interval": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/pg-types/node_modules/postgres-array": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/postgres-array/-/postgres-array-2.0.0.tgz",
+      "integrity": "sha512-VpZrUqU5A69eQyW2c5CA1jtLecCsN2U/bD6VilrFDWq5+5UIEVO7nazS3TEcHf1zuPYO/sqGvUvW62g86RXZuA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
+    "node_modules/pgpass": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/pgpass/-/pgpass-1.0.5.tgz",
+      "integrity": "sha512-FdW9r/jQZhSeohs1Z3sI1yxFQNFvMcnmfuj4WBMUTxOrAyLMaTcE1aAMBiTlbMNaXvBCQuVi0R7hd8udDSP7ug==",
+      "license": "MIT",
+      "dependencies": {
+        "split2": "^4.1.0"
+      }
+    },
     "node_modules/picocolors": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",
@@ -2118,6 +2244,45 @@
         "node": "^10 || ^12 || >=14"
       }
     },
+    "node_modules/postgres-array": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/postgres-array/-/postgres-array-3.0.4.tgz",
+      "integrity": "sha512-nAUSGfSDGOaOAEGwqsRY27GPOea7CNipJPOA7lPbdEpx5Kg3qzdP0AaWC5MlhTWV9s4hFX39nomVZ+C4tnGOJQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      }
+    },
+    "node_modules/postgres-bytea": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/postgres-bytea/-/postgres-bytea-1.0.1.tgz",
+      "integrity": "sha512-5+5HqXnsZPE65IJZSMkZtURARZelel2oXUEO8rH83VS/hxH5vv1uHquPg5wZs8yMAfdv971IU+kcPUczi7NVBQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/postgres-date": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/postgres-date/-/postgres-date-1.0.7.tgz",
+      "integrity": "sha512-suDmjLVQg78nMK2UZ454hAG+OAW+HQPZ6n++TNDUX+L0+uUlLywnoxJKDou51Zm+zTCjrCl0Nq6J9C5hP9vK/Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/postgres-interval": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/postgres-interval/-/postgres-interval-1.2.0.tgz",
+      "integrity": "sha512-9ZhXKM/rw350N1ovuWHbGxnGh/SNJ4cnxHiM0rxE4VN41wsg8P8zWn9hv/buK00RP4WvlOyr/RBDiptyxVbkZQ==",
+      "license": "MIT",
+      "dependencies": {
+        "xtend": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/proxy-from-env": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
@@ -2367,6 +2532,15 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/split2": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/split2/-/split2-4.2.0.tgz",
+      "integrity": "sha512-UcjcJOWknrNkF6PLX83qcHM6KHgVKNkV62Y8a5uYDVv9ydGQVwAHMKqHdJje1VTWpljG0WYpCDhrCdAOYH4TWg==",
+      "license": "ISC",
+      "engines": {
+        "node": ">= 10.x"
+      }
+    },
     "node_modules/stackblur-canvas": {
       "version": "2.7.0",
       "resolved": "https://registry.npmjs.org/stackblur-canvas/-/stackblur-canvas-2.7.0.tgz",
@@ -2571,6 +2745,15 @@
         "node": ">=0.4.0"
       }
     },
+    "node_modules/xtend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.4"
+      }
+    },
     "node_modules/y18n": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.3.tgz",
diff --git a/package.json b/package.json
index 9fc4d0f..70e88e3 100644
--- a/package.json
+++ b/package.json
@@ -8,10 +8,12 @@
     "preview": "vite preview"
   },
   "dependencies": {
+    "@prisma/adapter-pg": "^7.2.0",
     "axios": "^1.13.2",
     "html2canvas": "^1.4.1",
     "html5-qrcode": "^2.3.8",
     "jspdf": "^3.0.4",
+    "pg": "^8.16.3",
     "qrcode": "^1.5.4",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",