diff --git a/database/009-create-mention-table.sql b/database/009-create-mention-table.sql
index 9fc2c1bb9..25e7e8b36 100644
--- a/database/009-create-mention-table.sql
+++ b/database/009-create-mention-table.sql
@@ -1,5 +1,5 @@
--- SPDX-FileCopyrightText: 2021 - 2023 Ewan Cahen (Netherlands eScience Center) <e.cahen@esciencecenter.nl>
--- SPDX-FileCopyrightText: 2021 - 2023 Netherlands eScience Center
+-- SPDX-FileCopyrightText: 2021 - 2024 Ewan Cahen (Netherlands eScience Center) <e.cahen@esciencecenter.nl>
+-- SPDX-FileCopyrightText: 2021 - 2024 Netherlands eScience Center
 -- SPDX-FileCopyrightText: 2022 Dusan Mijatovic (dv4all)
 -- SPDX-FileCopyrightText: 2022 dv4all
 --
@@ -32,7 +32,7 @@ CREATE TABLE mention (
 	doi CITEXT UNIQUE CHECK (doi ~ '^10(\.\w+)+/\S+$' AND LENGTH(doi) <= 255),
 	doi_registration_date TIMESTAMPTZ,
 	url VARCHAR(500) CHECK (url ~ '^https?://'),
-	title VARCHAR(500) NOT NULL,
+	title VARCHAR(3000) NOT NULL,
 	authors VARCHAR(50000),
 	publisher VARCHAR(255),
 	publication_year SMALLINT,
diff --git a/frontend/components/mention/config.ts b/frontend/components/mention/config.ts
index 312b710bc..65fec1038 100644
--- a/frontend/components/mention/config.ts
+++ b/frontend/components/mention/config.ts
@@ -46,8 +46,8 @@ export const mentionModal = {
         message: 'Minimum length is 5'
       },
       maxLength: {
-        value: 500,
-        message: 'Maximum length is 500'
+        value: 3000,
+        message: 'Maximum length is 3000'
       }
     }
   },
@@ -57,8 +57,8 @@ export const mentionModal = {
     validation: {
       required: false,
       maxLength: {
-        value: 1000,
-        message: 'Maximum length is 1000'
+        value: 50000,
+        message: 'Maximum length is 50000'
       }
     }
   },
@@ -66,7 +66,11 @@ export const mentionModal = {
     label: 'Publisher',
     help: 'Name of publisher',
     validation: {
-      required: false
+      required: false,
+      maxLength: {
+        value: 255,
+        message: 'Maximum length is 255'
+      }
     }
   },
   journal: {
@@ -84,7 +88,11 @@ export const mentionModal = {
     label: 'Page',
     help: 'Page or page range',
     validation: {
-      required: false
+      required: false,
+      maxLength: {
+        value: 50,
+        message: 'Maximum length is 50'
+      }
     }
   },
   mentionType: {