diff --git a/oarepo_ui/theme/assets/semantic-ui/js/oarepo_ui/forms/components/EDTFDatePickerField/utils.js b/oarepo_ui/theme/assets/semantic-ui/js/oarepo_ui/forms/components/EDTFDatePickerField/utils.js
index 25044682..7f909295 100644
--- a/oarepo_ui/theme/assets/semantic-ui/js/oarepo_ui/forms/components/EDTFDatePickerField/utils.js
+++ b/oarepo_ui/theme/assets/semantic-ui/js/oarepo_ui/forms/components/EDTFDatePickerField/utils.js
@@ -9,20 +9,24 @@ export const edtfDateFormatOptions = [
   { value: "yyyy-mm-dd", text: i18next.t("Year, month and date") },
 ];
 
+const getPaddedYearString = (dateObj) => {
+  const year = dateObj.getFullYear();
+  return _padStart(`${year}`, 4, "0");
+};
 export const allEmptyStrings = (arr) => arr.every((element) => element === "");
 
 export const serializeDate = (dateObj, dateEdtfFormat) => {
   if (dateObj === null) return "";
 
-  if (dateEdtfFormat === "yyyy") return `${dateObj.getFullYear()}`;
+  if (dateEdtfFormat === "yyyy") return getPaddedYearString(dateObj);
   if (dateEdtfFormat === "yyyy-mm")
-    return `${dateObj.getFullYear()}-${_padStart(
+    return `${getPaddedYearString(dateObj)}-${_padStart(
       dateObj.getMonth() + 1,
       2,
       "0"
     )}`;
   if (dateEdtfFormat === "yyyy-mm-dd")
-    return `${dateObj.getFullYear()}-${_padStart(
+    return `${getPaddedYearString(dateObj)}-${_padStart(
       dateObj.getMonth() + 1,
       2,
       "0"
diff --git a/oarepo_ui/theme/assets/semantic-ui/less/oarepo_ui/themes/default/elements/header.overrides b/oarepo_ui/theme/assets/semantic-ui/less/oarepo_ui/themes/default/elements/header.overrides
new file mode 100644
index 00000000..35edbc7c
--- /dev/null
+++ b/oarepo_ui/theme/assets/semantic-ui/less/oarepo_ui/themes/default/elements/header.overrides
@@ -0,0 +1,3 @@
+.ui.header {
+  word-break: break-word;
+}
diff --git a/oarepo_ui/views.py b/oarepo_ui/views.py
index ddf43f85..2354aa30 100644
--- a/oarepo_ui/views.py
+++ b/oarepo_ui/views.py
@@ -1,11 +1,18 @@
 from flask import Blueprint
 from invenio_base.utils import obj_or_import_string
+from flask_menu import current_menu
 
 
 def create_blueprint(app):
     blueprint = Blueprint("oarepo_ui", __name__, template_folder="templates")
     blueprint.app_context_processor(lambda: ({"current_app": app}))
 
+    # hide the /admin (maximum recursion depth exceeded menu)
+    @blueprint.before_app_first_request
+    def init_menu():
+        admin_menu = current_menu.submenu("settings.admin")
+        admin_menu.hide()
+
     def add_jinja_filters(state):
         app = state.app
         ext = app.extensions["oarepo_ui"]
diff --git a/setup.cfg b/setup.cfg
index 3ff57a1e..06abe68e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = oarepo-ui
-version = 5.2.25
+version = 5.2.26
 description = UI module for invenio 3.5+
 long_description = file: README.md
 long_description_content_type = text/markdown