diff --git a/lib/adapters/REST/endpoints/entry.ts b/lib/adapters/REST/endpoints/entry.ts
index 305af7eec8..f0386b53f7 100644
--- a/lib/adapters/REST/endpoints/entry.ts
+++ b/lib/adapters/REST/endpoints/entry.ts
@@ -13,6 +13,8 @@ import type {
   PatchEntryParams,
   PatchReleaseEntryParams,
   QueryParams,
+  UpdateEntryParams,
+  UpdateReleaseEntryParams,
 } from '../../../common-types'
 import type { CreateEntryProps, EntryProps, EntryReferenceProps } from '../../../entities/entry'
 import type { RestEndpoint } from '../types'
@@ -105,10 +107,14 @@ export const patch: RestEndpoint<'Entry', 'patch'> = <T extends KeyValueMap = Ke
 
 export const update: RestEndpoint<'Entry', 'update'> = <T extends KeyValueMap = KeyValueMap>(
   http: AxiosInstance,
-  params: GetSpaceEnvironmentParams & { entryId: string },
+  params: UpdateEntryParams & QueryParams,
   rawData: EntryProps<T>,
   headers?: RawAxiosRequestHeaders
 ) => {
+  if (params.releaseId) {
+    return releaseEntry.update(http, params as UpdateReleaseEntryParams, rawData, headers ?? {})
+  }
+
   const data: SetOptional<typeof rawData, 'sys'> = copy(rawData)
   delete data.sys
   return raw.put<EntryProps<T>>(
diff --git a/lib/common-types.ts b/lib/common-types.ts
index e95d53073b..9e0dbc4ab6 100644
--- a/lib/common-types.ts
+++ b/lib/common-types.ts
@@ -1618,7 +1618,7 @@ export type MRActions = {
       return: EntryProps<any>
     }
     update: {
-      params: GetSpaceEnvironmentParams & { entryId: string }
+      params: UpdateEntryParams & QueryParams
       payload: EntryProps<any>
       headers?: RawAxiosRequestHeaders
       return: EntryProps<any>
@@ -2396,6 +2396,7 @@ export type PatchEntryParams = GetSpaceEnvironmentParams & {
   version: number
   releaseId?: string
 }
+export type UpdateEntryParams = GetSpaceEnvironmentParams & { entryId: string; releaseId?: string }
 export type GetExtensionParams = GetSpaceEnvironmentParams & { extensionId: string }
 export type GetEnvironmentTemplateParams = GetOrganizationParams & { environmentTemplateId: string }
 export type GetFunctionParams = GetAppDefinitionParams & { functionId: string }
diff --git a/lib/plain/common-types.ts b/lib/plain/common-types.ts
index 495764753a..ddb7e8a307 100644
--- a/lib/plain/common-types.ts
+++ b/lib/plain/common-types.ts
@@ -25,6 +25,7 @@ import type {
   PatchReleaseEntryParams,
   QueryParams,
   ReleaseEnvironmentParams,
+  UpdateEntryParams,
   UpdateReleaseEntryParams,
 } from '../common-types'
 import type {
@@ -320,7 +321,7 @@ export type PlainClientAPI = {
       >
     >
     update<T extends KeyValueMap = KeyValueMap>(
-      params: OptionalDefaults<GetSpaceEnvironmentParams & { entryId: string }>,
+      params: OptionalDefaults<UpdateEntryParams & QueryParams>,
       rawData: EntryProps<T>,
       headers?: RawAxiosRequestHeaders
     ): Promise<EntryProps<T>>
diff --git a/test/integration/entry-integration.test.ts b/test/integration/entry-integration.test.ts
index 80629f5e4a..01131e9a3c 100644
--- a/test/integration/entry-integration.test.ts
+++ b/test/integration/entry-integration.test.ts
@@ -823,6 +823,32 @@ describe('Entry Api', () => {
         expect(patchedEntry.sys.version).toBeGreaterThan(entryToPatch.sys.version)
         expect((patchedEntry as any).sys.release.sys.id).toEqual(entryToPatch.sys.release.sys.id)
       })
+
+      test('entry.update works', async () => {
+        const entryToUpdate = await createEntryClient.entry.get({
+          entryId: entry.sys.id,
+          releaseId: release.sys.id,
+        })
+
+        const updatedEntry = await createEntryClient.entry.update(
+          {
+            entryId: entryToUpdate.sys.id,
+            releaseId: release.sys.id,
+          },
+          {
+            ...entryToUpdate,
+            fields: {
+              ...entryToUpdate.fields,
+              title: { 'en-US': 'Entry updated via release' },
+            },
+          }
+        )
+
+        expect(updatedEntry.sys.id).toEqual(entryToUpdate.sys.id)
+        expect(updatedEntry.fields.title['en-US']).toEqual('Entry updated via release')
+        expect(updatedEntry.sys.version).toBeGreaterThan(entryToUpdate.sys.version)
+        expect((updatedEntry as any).sys.release.sys.id).toEqual(entryToUpdate.sys.release.sys.id)
+      })
     })
 
     describe('releaseId is provided in default params, but not in params', () => {
@@ -878,6 +904,30 @@ describe('Entry Api', () => {
         expect(patchedEntry.sys.version).toBeGreaterThan(entryToPatch.sys.version)
         expect((patchedEntry as any).sys.release.sys.id).toEqual(entryToPatch.sys.release.sys.id)
       })
+
+      test('entry.update works', async () => {
+        const entryToUpdate = await createEntryClient.entry.get({
+          entryId: entry.sys.id,
+        })
+
+        const updatedEntry = await createEntryClient.entry.update(
+          {
+            entryId: entryToUpdate.sys.id,
+          },
+          {
+            ...entryToUpdate,
+            fields: {
+              ...entryToUpdate.fields,
+              title: { 'en-US': 'Entry updated via default release' },
+            },
+          }
+        )
+
+        expect(updatedEntry.sys.id).toEqual(entryToUpdate.sys.id)
+        expect(updatedEntry.fields.title['en-US']).toEqual('Entry updated via default release')
+        expect(updatedEntry.sys.version).toBeGreaterThan(entryToUpdate.sys.version)
+        expect((updatedEntry as any).sys.release.sys.id).toEqual(entryToUpdate.sys.release.sys.id)
+      })
     })
   })
 
diff --git a/test/unit/adapters/REST/endpoints/entry.test.ts b/test/unit/adapters/REST/endpoints/entry.test.ts
index 87f5fd4e6d..cb22b8aa3c 100644
--- a/test/unit/adapters/REST/endpoints/entry.test.ts
+++ b/test/unit/adapters/REST/endpoints/entry.test.ts
@@ -276,4 +276,85 @@ describe('Rest Entry', () => {
         )
       })
   })
+
+  test('update without releaseId', async () => {
+    const { httpMock, adapterMock, entityMock } = setup(Promise.resolve({}))
+
+    httpMock.put.mockReturnValue(Promise.resolve({ data: entityMock }))
+
+    const updateData = {
+      ...entityMock,
+      fields: {
+        title: { 'en-US': 'Updated Title' },
+      },
+    }
+
+    return adapterMock
+      .makeRequest({
+        entityType: 'Entry',
+        action: 'update',
+        userAgent: 'mocked',
+        params: {
+          spaceId: 'space123',
+          environmentId: 'master',
+          entryId: 'entry123',
+        },
+        payload: updateData,
+      })
+      .then((r) => {
+        expect(r).to.eql(entityMock)
+        expect(httpMock.put.mock.calls[0][0]).to.eql(
+          '/spaces/space123/environments/master/entries/entry123'
+        )
+        // Check that sys is removed from the payload
+        expect(httpMock.put.mock.calls[0][1]).not.toHaveProperty('sys')
+        expect(httpMock.put.mock.calls[0][1].fields.title['en-US']).to.eql('Updated Title')
+        expect(httpMock.put.mock.calls[0][2].headers['X-Contentful-Version']).to.eql(
+          updateData.sys.version
+        )
+      })
+  })
+
+  test('update with releaseId delegates to release entry', async () => {
+    const { httpMock, adapterMock, entityMock } = setup(Promise.resolve({}))
+
+    // Mock the release entry endpoint
+    httpMock.put.mockReturnValue(Promise.resolve({ data: entityMock }))
+
+    const updateData = {
+      ...entityMock,
+      fields: {
+        title: { 'en-US': 'Updated Title in Release' },
+      },
+    }
+
+    return adapterMock
+      .makeRequest({
+        entityType: 'Entry',
+        action: 'update',
+        userAgent: 'mocked',
+        params: {
+          spaceId: 'space123',
+          environmentId: 'master',
+          entryId: 'entry123',
+          releaseId: 'release456',
+        },
+        payload: updateData,
+      })
+      .then((r) => {
+        expect(r).to.eql(entityMock)
+        // When releaseId is provided, it should call the release entry endpoint
+        expect(httpMock.put.mock.calls[0][0]).to.eql(
+          '/spaces/space123/environments/master/releases/release456/entries/entry123'
+        )
+        // Check that sys is removed from the payload
+        expect(httpMock.put.mock.calls[0][1]).not.toHaveProperty('sys')
+        expect(httpMock.put.mock.calls[0][1].fields.title['en-US']).to.eql(
+          'Updated Title in Release'
+        )
+        expect(httpMock.put.mock.calls[0][2].headers['X-Contentful-Version']).to.eql(
+          updateData.sys.version
+        )
+      })
+  })
 })