diff --git a/packages/runtime/src/enhancements/node/utils.ts b/packages/runtime/src/enhancements/node/utils.ts
index 347447618..05d906046 100644
--- a/packages/runtime/src/enhancements/node/utils.ts
+++ b/packages/runtime/src/enhancements/node/utils.ts
@@ -7,7 +7,7 @@ import type { DbClientContract } from '../../types';
  */
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 export function formatObject(value: any, multiLine = true) {
-    return multiLine ? safeJsonStringify(value, undefined, 2) : safeJsonStringify(value);
+    return safeJsonStringify(value, (_, v) => (typeof v === 'bigint' ? v.toString() : v), multiLine ? 2 : undefined);
 }
 
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
diff --git a/tests/regression/tests/issue-2106.test.ts b/tests/regression/tests/issue-2106.test.ts
new file mode 100644
index 000000000..c81347918
--- /dev/null
+++ b/tests/regression/tests/issue-2106.test.ts
@@ -0,0 +1,19 @@
+import { loadSchema } from '@zenstackhq/testtools';
+
+describe('issue 2106', () => {
+    it('regression', async () => {
+        const { enhance } = await loadSchema(
+            `
+            model User {
+                id Int @id
+                age BigInt
+                @@allow('all', true)
+            }
+            `,
+            { logPrismaQuery: true }
+        );
+
+        const db = enhance();
+        await expect(db.user.create({ data: { id: 1, age: 1n } })).toResolveTruthy();
+    });
+});