diff --git a/packages/runtime/src/enhancements/node/delegate.ts b/packages/runtime/src/enhancements/node/delegate.ts
index 54c1abf96..3a4c0a585 100644
--- a/packages/runtime/src/enhancements/node/delegate.ts
+++ b/packages/runtime/src/enhancements/node/delegate.ts
@@ -10,6 +10,7 @@ import {
     NestedWriteVisitor,
     clone,
     enumerate,
+    getFields,
     getIdFields,
     getModelInfo,
     isDelegateModel,
@@ -816,12 +817,19 @@ export class DelegateProxyHandler extends DefaultPrismaProxyHandler {
             return super.updateMany(args);
         }
 
-        const simpleUpdateMany = Object.keys(args.data).every((key) => {
+        let simpleUpdateMany = Object.keys(args.data).every((key) => {
             // check if the `data` clause involves base fields
             const fieldInfo = resolveField(this.options.modelMeta, this.model, key);
             return !fieldInfo?.inheritedFrom;
         });
 
+        // check if there are any `@updatedAt` fields from delegate base models
+        if (simpleUpdateMany) {
+            if (this.getUpdatedAtFromDelegateBases(this.model).length > 0) {
+                simpleUpdateMany = false;
+            }
+        }
+
         return this.queryUtils.transaction(this.prisma, (tx) =>
             this.doUpdateMany(tx, this.model, args, simpleUpdateMany)
         );
@@ -947,6 +955,13 @@ export class DelegateProxyHandler extends DefaultPrismaProxyHandler {
                     return !fieldInfo?.inheritedFrom;
                 });
 
+                // check if there are any `@updatedAt` fields from delegate base models
+                if (simpleUpdateMany) {
+                    if (this.getUpdatedAtFromDelegateBases(model).length > 0) {
+                        simpleUpdateMany = false;
+                    }
+                }
+
                 if (simpleUpdateMany) {
                     // check if the `where` clause involves base fields
                     simpleUpdateMany = Object.keys(args.where || {}).every((key) => {
@@ -1053,6 +1068,15 @@ export class DelegateProxyHandler extends DefaultPrismaProxyHandler {
                 delete data[field];
             }
         }
+
+        // if we're updating any field, we need to take care of updating `@updatedAt`
+        // fields inherited from delegate base models
+        if (Object.keys(data).length > 0) {
+            const updatedAtFields = this.getUpdatedAtFromDelegateBases(model);
+            for (const fieldInfo of updatedAtFields) {
+                this.injectBaseFieldData(model, fieldInfo, new Date(), data, 'update');
+            }
+        }
     }
 
     // #endregion
@@ -1477,5 +1501,20 @@ export class DelegateProxyHandler extends DefaultPrismaProxyHandler {
         return result;
     }
 
+    private getUpdatedAtFromDelegateBases(model: string) {
+        const result: FieldInfo[] = [];
+        const modelFields = getFields(this.options.modelMeta, model);
+        for (const fieldInfo of Object.values(modelFields)) {
+            if (
+                fieldInfo.attributes?.some((attr) => attr.name === '@updatedAt') &&
+                fieldInfo.inheritedFrom &&
+                isDelegateModel(this.options.modelMeta, fieldInfo.inheritedFrom)
+            ) {
+                result.push(fieldInfo);
+            }
+        }
+        return result;
+    }
+
     // #endregion
 }
diff --git a/tests/integration/tests/enhancements/with-delegate/enhanced-client.test.ts b/tests/integration/tests/enhancements/with-delegate/enhanced-client.test.ts
index 1f7a40129..d35fc02c6 100644
--- a/tests/integration/tests/enhancements/with-delegate/enhanced-client.test.ts
+++ b/tests/integration/tests/enhancements/with-delegate/enhanced-client.test.ts
@@ -476,6 +476,8 @@ describe('Polymorphism Test', () => {
     it('update simple', async () => {
         const { db, videoWithOwner: video } = await setup();
 
+        const read = await db.ratedVideo.findUnique({ where: { id: video.id } });
+
         // update with concrete
         let updated = await db.ratedVideo.update({
             where: { id: video.id },
@@ -484,6 +486,7 @@ describe('Polymorphism Test', () => {
         });
         expect(updated.rating).toBe(200);
         expect(updated.owner).toBeTruthy();
+        expect(updated.updatedAt.getTime()).toBeGreaterThan(read.updatedAt.getTime());
 
         // update with base
         updated = await db.video.update({
@@ -613,17 +616,18 @@ describe('Polymorphism Test', () => {
         });
 
         // updateMany with filter
-        await expect(
-            db.user.update({
-                where: { id: user.id },
-                data: {
-                    ratedVideos: { updateMany: { where: { duration: 1 }, data: { rating: 333 } } },
-                },
-                include: { ratedVideos: true },
-            })
-        ).resolves.toMatchObject({
+        const read = await db.ratedVideo.findFirst({ where: { duration: 1 } });
+        const r = await db.user.update({
+            where: { id: user.id },
+            data: {
+                ratedVideos: { updateMany: { where: { duration: 1 }, data: { rating: 333 } } },
+            },
+            include: { ratedVideos: true },
+        });
+        expect(r).toMatchObject({
             ratedVideos: expect.arrayContaining([expect.objectContaining({ rating: 333 })]),
         });
+        expect(r.ratedVideos[0].updatedAt.getTime()).toBeGreaterThan(read.updatedAt.getTime());
 
         // updateMany without filter
         await expect(
@@ -1025,22 +1029,23 @@ describe('Polymorphism Test', () => {
         ).rejects.toThrow('is a delegate');
 
         // update
-        await expect(
-            db.ratedVideo.upsert({
-                where: { id: video.id },
-                create: {
-                    viewCount: 1,
-                    duration: 300,
-                    url: 'xyz',
-                    rating: 100,
-                    owner: { connect: { id: user.id } },
-                },
-                update: { duration: 200 },
-            })
-        ).resolves.toMatchObject({
+        const read = await db.ratedVideo.findUnique({ where: { id: video.id } });
+        const r = await db.ratedVideo.upsert({
+            where: { id: video.id },
+            create: {
+                viewCount: 1,
+                duration: 300,
+                url: 'xyz',
+                rating: 100,
+                owner: { connect: { id: user.id } },
+            },
+            update: { duration: 200 },
+        });
+        expect(r).toMatchObject({
             id: video.id,
             duration: 200,
         });
+        expect(r.updatedAt.getTime()).toBeGreaterThan(read.updatedAt.getTime());
 
         // create
         const created = await db.ratedVideo.upsert({
diff --git a/tests/integration/tests/enhancements/with-delegate/plugin-interaction.test.ts b/tests/integration/tests/enhancements/with-delegate/plugin-interaction.test.ts
index 8247c2e45..aceb50932 100644
--- a/tests/integration/tests/enhancements/with-delegate/plugin-interaction.test.ts
+++ b/tests/integration/tests/enhancements/with-delegate/plugin-interaction.test.ts
@@ -65,6 +65,7 @@ describe('Polymorphic Plugin Interaction Test', () => {
                 id: 1,
                 assetType: 'video',
                 createdAt: new Date(),
+                updatedAt: new Date(),
                 viewCount: 100,
             })
         ).toBeTruthy();
@@ -74,6 +75,7 @@ describe('Polymorphic Plugin Interaction Test', () => {
                 id: 1,
                 assetType: 'video',
                 createdAt: new Date(),
+                updatedAt: new Date(),
                 viewCount: 100,
                 videoType: 'ratedVideo', // should be stripped
             }).videoType
@@ -87,6 +89,7 @@ describe('Polymorphic Plugin Interaction Test', () => {
                 duration: 100,
                 url: 'http://example.com',
                 createdAt: new Date(),
+                updatedAt: new Date(),
                 viewCount: 100,
             })
         ).toBeTruthy();
@@ -98,6 +101,7 @@ describe('Polymorphic Plugin Interaction Test', () => {
                 videoType: 'ratedVideo',
                 url: 'http://example.com',
                 createdAt: new Date(),
+                updatedAt: new Date(),
                 viewCount: 100,
             })
         ).toThrow('duration');
diff --git a/tests/integration/tests/enhancements/with-delegate/utils.ts b/tests/integration/tests/enhancements/with-delegate/utils.ts
index 41700bd4b..23bae33db 100644
--- a/tests/integration/tests/enhancements/with-delegate/utils.ts
+++ b/tests/integration/tests/enhancements/with-delegate/utils.ts
@@ -12,6 +12,7 @@ model User {
 model Asset {
     id Int @id @default(autoincrement())
     createdAt DateTime @default(now())
+    updatedAt DateTime @updatedAt
     viewCount Int @default(0)
     owner User? @relation(fields: [ownerId], references: [id])
     ownerId Int?