diff --git a/packages/schema/src/res/stdlib.zmodel b/packages/schema/src/res/stdlib.zmodel
index a0a0a41f8..dd92ff0ae 100644
--- a/packages/schema/src/res/stdlib.zmodel
+++ b/packages/schema/src/res/stdlib.zmodel
@@ -94,7 +94,7 @@ function uuid(version: Int?): String {
 /**
  * Generates a globally unique identifier based on the CUID spec.
  */
-function cuid(): String {
+function cuid(version: Int?): String {
 } @@@expressionContext([DefaultValue])
 
 /**
@@ -103,6 +103,12 @@ function cuid(): String {
 function nanoid(length: Int?): String {
 } @@@expressionContext([DefaultValue])
 
+/**
+ * Generates an identifier based on the ulid spec.
+ */
+function ulid(): String {
+} @@@expressionContext([DefaultValue])
+
 /**
  * Creates a sequence of integers in the underlying database and assign the incremented 
  * values to the ID values of the created records based on the sequence.
diff --git a/packages/schema/tests/generator/prisma-generator.test.ts b/packages/schema/tests/generator/prisma-generator.test.ts
index b4f58dcf1..05f4b907f 100644
--- a/packages/schema/tests/generator/prisma-generator.test.ts
+++ b/packages/schema/tests/generator/prisma-generator.test.ts
@@ -164,6 +164,9 @@ describe('Prisma generator test', () => {
                 x String @default(nanoid())
                 y String @default(dbgenerated("gen_random_uuid()"))
                 z String @default(auth().id)
+                cuid String @default(cuid())
+                cuid2 String @default(cuid(2))
+                ulid String @default(ulid())
             }
         `);
 
@@ -183,6 +186,9 @@ describe('Prisma generator test', () => {
         expect(content).toContain('@default(nanoid())');
         expect(content).toContain('@default(dbgenerated("gen_random_uuid()"))');
         expect(content).not.toContain('@default(auth().id)');
+        expect(content).toContain('@default(cuid())');
+        expect(content).toContain('@default(cuid(2))');
+        expect(content).toContain('@default(ulid())');
     });
 
     it('triple slash comments', async () => {