diff --git a/package.json b/package.json
index 330bc0c..17eaf47 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ipwhitelist",
-  "version": "0.5.35",
+  "version": "0.5.36",
   "description": "IP WhiteList microservice for cloud provider",
   "main": "server.js",
   "scripts": {
diff --git a/src/db.js b/src/db.js
index 3c43c0c..083476d 100644
--- a/src/db.js
+++ b/src/db.js
@@ -35,7 +35,7 @@ async function ensureSchema() {
     CREATE TABLE IF NOT EXISTS whitelist_entries (
       id           SERIAL PRIMARY KEY,
       company_id   INTEGER NOT NULL REFERENCES companies(id) ON DELETE RESTRICT,
-      value_cidr   VARCHAR(18) NOT NULL CHECK (value_cidr ~ '^(\d{1,3}\.){3}\d{1,3}/\d{1,2}$'),
+      value_cidr   VARCHAR(18) NOT NULL CHECK (value_cidr LIKE '%/%'),
       comment      VARCHAR(255),
       created_by   VARCHAR(255) NOT NULL,
       created_at   TIMESTAMPTZ NOT NULL DEFAULT NOW(),
@@ -60,6 +60,13 @@ async function ensureSchema() {
     );
     CREATE INDEX IF NOT EXISTS idx_audit_company_time ON audit_log(company_id, created_at DESC);
   `);
+
+  // Замена constraint на managed-совместимый (без regex, который ломается от standard_conforming_strings)
+  await pool.query(`
+    ALTER TABLE whitelist_entries DROP CONSTRAINT IF EXISTS whitelist_entries_value_cidr_check;
+    ALTER TABLE whitelist_entries ADD CONSTRAINT whitelist_entries_value_cidr_check CHECK (value_cidr LIKE '%/%');
+  `).catch(() => {}); // игнор если нет прав на ALTER
+
   console.log('[db] Schema ensured');
 }