diff --git a/backend/src/apis/humhub/ImportUsers.ts b/backend/src/apis/humhub/ImportUsers.ts
index de33ba779..8a40d480d 100644
--- a/backend/src/apis/humhub/ImportUsers.ts
+++ b/backend/src/apis/humhub/ImportUsers.ts
@@ -24,7 +24,7 @@ function getUsersPage(page: number, limit: number): Promise<[User[], number]> {
 
 /**
  * @param client
- * @returns user map indiced with email
+ * @returns user map indices with email
  */
 async function loadUsersFromHumHub(client: HumHubClient): Promise<Map<string, GetUser>> {
   const start = new Date().getTime()
diff --git a/backend/src/graphql/resolver/UserResolver.ts b/backend/src/graphql/resolver/UserResolver.ts
index 436c0aa83..33a351730 100644
--- a/backend/src/graphql/resolver/UserResolver.ts
+++ b/backend/src/graphql/resolver/UserResolver.ts
@@ -79,6 +79,7 @@ import { getKlicktippState } from './util/getKlicktippState'
 import { Location2Point } from './util/Location2Point'
 import { setUserRole, deleteUserRole } from './util/modifyUserRole'
 import { sendUserToGms } from './util/sendUserToGms'
+import { syncHumhub } from './util/syncHumhub'
 import { validateAlias } from './util/validateAlias'
 
 const LANGUAGES = ['de', 'en', 'es', 'fr', 'nl']
@@ -670,6 +671,9 @@ export class UserResolver {
         logger.debug(`gms-user update successfully.`)
       }
     }
+    if (CONFIG.HUMHUB_ACTIVE) {
+      await syncHumhub(updateUserInfosArgs, user)
+    }
 
     return true
   }
diff --git a/backend/src/graphql/resolver/util/syncHumhub.ts b/backend/src/graphql/resolver/util/syncHumhub.ts
new file mode 100644
index 000000000..1ed1af7ab
--- /dev/null
+++ b/backend/src/graphql/resolver/util/syncHumhub.ts
@@ -0,0 +1,42 @@
+import { User } from '@entity/User'
+
+import { HumHubClient } from '@/apis/humhub/HumHubClient'
+import { GetUser } from '@/apis/humhub/model/GetUser'
+import { syncUser } from '@/apis/humhub/syncUser'
+import { UpdateUserInfosArgs } from '@/graphql/arg/UpdateUserInfosArgs'
+import { backendLogger as logger } from '@/server/logger'
+
+export async function syncHumhub(
+  updateUserInfosArg: UpdateUserInfosArgs,
+  user: User,
+): Promise<void> {
+  // check for humhub relevant changes
+  if (
+    !updateUserInfosArg.alias &&
+    !updateUserInfosArg.firstName &&
+    !updateUserInfosArg.lastName &&
+    !updateUserInfosArg.humhubAllowed &&
+    !updateUserInfosArg.humhubPublishName &&
+    !updateUserInfosArg.language
+  ) {
+    return
+  }
+  logger.debug('changed user-settings relevant for humhub-user update...')
+  const humhubClient = HumHubClient.getInstance()
+  if (!humhubClient) {
+    return
+  }
+  logger.debug('retrieve user from humhub')
+  const humhubUser = await humhubClient.userByEmail(user.emailContact.email)
+  const humhubUsers = new Map<string, GetUser>()
+  if (humhubUser) {
+    humhubUsers.set(user.emailContact.email, humhubUser)
+  }
+  logger.debug('update user at humhub')
+  const result = await syncUser(user, humhubUsers)
+  logger.info('finished sync user with humhub', {
+    localId: user.id,
+    externId: humhubUser?.id,
+    result,
+  })
+}