diff --git a/mainproject/settings.py b/mainproject/settings.py
index c78d407..cc68b6c 100644
--- a/mainproject/settings.py
+++ b/mainproject/settings.py
@@ -23,79 +23,80 @@
 
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 SECRET_KEY = config(
-    'SECRET_KEY', default='GF#QhIU%}4;auyFdIr]6>$_~|=."9qB%[Oj;.<^$IkNAgp0E{d')
-DEBUG = config('DEBUG', default=False, cast=bool)
-ALLOWED_HOSTS = config('ALLOWED_HOSTS', default='', cast=Csv())
-MATD3_NAME = mark_safe(config('MATD3_NAME', default='MatD&#xb3;'))
-MATD3_URL = config('MATD3_URL', default='')
-# DEFAULT_AUTO_FIELD='django.db.models.AutoField' #Uncomment this line if using Django version 3.2 or higher
+    "SECRET_KEY", default='GF#QhIU%}4;auyFdIr]6>$_~|=."9qB%[Oj;.<^$IkNAgp0E{d'
+)
+DEBUG = config("DEBUG", default=False, cast=bool)
+ALLOWED_HOSTS = config("ALLOWED_HOSTS", default="", cast=Csv())
+MATD3_NAME = mark_safe(config("MATD3_NAME", default="MatD&#xb3;"))
+MATD3_URL = config("MATD3_URL", default="")
+DEFAULT_AUTO_FIELD = "django.db.models.AutoField"  # Uncomment this line if using Django version 3.2 or higher
 
 # Application definition
 
 INSTALLED_APPS = [
-    'materials',
-    'accounts',
-    'django.contrib.admin',
-    'django.contrib.auth',
-    'django.contrib.contenttypes',
-    'django.contrib.sessions',
-    'django.contrib.messages',
-    'django.contrib.staticfiles',
-    'raven.contrib.django.raven_compat',
-    'nested_admin',
-    'rest_framework',
-    'django_filters'
+    "materials",
+    "accounts",
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "raven.contrib.django.raven_compat",
+    "nested_admin",
+    "rest_framework",
+    "django_filters",
 ]
 
 MIDDLEWARE = [
-    'django.middleware.security.SecurityMiddleware',
-    'django.contrib.sessions.middleware.SessionMiddleware',
-    'django.middleware.common.CommonMiddleware',
-    'django.middleware.csrf.CsrfViewMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware',
-    'django.contrib.messages.middleware.MessageMiddleware',
-    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
 ]
 
-ROOT_URLCONF = 'mainproject.urls'
+ROOT_URLCONF = "mainproject.urls"
 
 TEMPLATES = [
     {
-        'BACKEND': 'django.template.backends.django.DjangoTemplates',
-        'DIRS': [os.path.join(BASE_DIR, 'mainproject/templates')],
-        'APP_DIRS': True,
-        'OPTIONS': {
-            'context_processors': [
-                'django.template.context_processors.debug',
-                'django.template.context_processors.request',
-                'django.contrib.auth.context_processors.auth',
-                'django.contrib.messages.context_processors.messages',
-                'mainproject.context_processors.title',
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [os.path.join(BASE_DIR, "mainproject/templates")],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
+                "mainproject.context_processors.title",
             ],
         },
     },
 ]
 
-WSGI_APPLICATION = 'mainproject.wsgi.application'
+WSGI_APPLICATION = "mainproject.wsgi.application"
 
 # Database
-USE_SQLITE = config('USE_SQLITE', default=False, cast=bool)
+USE_SQLITE = config("USE_SQLITE", default=False, cast=bool)
 if USE_SQLITE:
     DATABASES = {
-        'default': {
-            'ENGINE': 'django.db.backends.sqlite3',
-            'NAME': os.path.join(BASE_DIR, 'materials.db'),
+        "default": {
+            "ENGINE": "django.db.backends.sqlite3",
+            "NAME": os.path.join(BASE_DIR, "materials.db"),
         }
     }
 else:
     DATABASES = {
-        'default': {
-            'ENGINE': 'django.db.backends.mysql',
-            'NAME': 'materials',
-            'USER': config('DB_USER', default=''),
-            'PASSWORD': config('DB_PASSWORD', default=''),
-            'HOST': 'localhost',
-            'PORT': '',
+        "default": {
+            "ENGINE": "django.db.backends.mysql",
+            "NAME": "materials",
+            "USER": config("DB_USER", default=""),
+            "PASSWORD": config("DB_PASSWORD", default=""),
+            "HOST": "localhost",
+            "PORT": "",
         }
     }
 
@@ -103,28 +104,25 @@
 
 AUTH_PASSWORD_VALIDATORS = [
     {
-        'NAME': 'django.contrib.auth.password_validation.'
-        'UserAttributeSimilarityValidator',
+        "NAME": "django.contrib.auth.password_validation."
+        "UserAttributeSimilarityValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.'
-        'MinimumLengthValidator',
+        "NAME": "django.contrib.auth.password_validation." "MinimumLengthValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.'
-        'CommonPasswordValidator',
+        "NAME": "django.contrib.auth.password_validation." "CommonPasswordValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.'
-        'NumericPasswordValidator',
+        "NAME": "django.contrib.auth.password_validation." "NumericPasswordValidator",
     },
 ]
 
 # Internationalization
 
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = "en-us"
 
-TIME_ZONE = 'America/New_York'
+TIME_ZONE = "America/New_York"
 
 USE_I18N = True
 
@@ -136,76 +134,73 @@
 
 # Static files (CSS, JavaScript, Images)
 
-STATIC_URL = '/static/'
-STATIC_ROOT = os.path.join(BASE_DIR, 'static')
-STATICFILES_DIRS = [
-    os.path.join(BASE_DIR, 'mainproject/static')
-]
+STATIC_URL = "/static/"
+STATIC_ROOT = os.path.join(BASE_DIR, "static")
+STATICFILES_DIRS = [os.path.join(BASE_DIR, "mainproject/static")]
 
 # Media
-MEDIA_URL = '/media/'
-MEDIA_ROOT = os.path.join(BASE_DIR, 'mainproject/media')
+MEDIA_URL = "/media/"
+MEDIA_ROOT = os.path.join(BASE_DIR, "mainproject/media")
 DATA_UPLOAD_MAX_MEMORY_SIZE = None
 DATA_UPLOAD_MAX_NUMBER_FIELDS = None
 FILE_UPLOAD_MAX_MEMORY_SIZE = int(5e8)
 
 # Account
 
-LOGIN_REDIRECT_URL = '/'
-LOGIN_URL = '/accounts/login'
+LOGIN_REDIRECT_URL = "/"
+LOGIN_URL = "/accounts/login"
 ACCOUNT_ACTIVATION_DAYS = 7
 
 # Email
 
-EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
-EMAIL_HOST = config('EMAIL_HOST', default='')
-EMAIL_PORT = config('EMAIL_PORT', default=587, cast=int)
-EMAIL_HOST_USER = config('EMAIL_HOST_USER', default='')
-EMAIL_HOST_PASSWORD = config('EMAIL_HOST_PASSWORD', default='')
-EMAIL_USE_TLS = config('EMAIL_USE_TLS', default=True, cast=bool)
+EMAIL_BACKEND = "django.core.mail.backends.smtp.EmailBackend"
+EMAIL_HOST = config("EMAIL_HOST", default="")
+EMAIL_PORT = config("EMAIL_PORT", default=587, cast=int)
+EMAIL_HOST_USER = config("EMAIL_HOST_USER", default="")
+EMAIL_HOST_PASSWORD = config("EMAIL_HOST_PASSWORD", default="")
+EMAIL_USE_TLS = config("EMAIL_USE_TLS", default=True, cast=bool)
 
 # Messages framework
 
 MESSAGE_TAGS = {
-    messages.ERROR: 'danger',
+    messages.ERROR: "danger",
 }
 
 # Logging
 
 RAVEN_CONFIG = {
-    'dsn': config('RAVEN_DSN', default=''),
-    'release': raven.fetch_git_sha(BASE_DIR),
+    "dsn": config("RAVEN_DSN", default=""),
+    "release": raven.fetch_git_sha(BASE_DIR),
 }
 
 LOGGING = {
-    'version': 1,
-    'disable_existing_loggers': False,
-    'formatters': {
-        'verbose': {
-            'format': '{levelname} - {asctime} - {module} - {message}',
-            'style': '{',
+    "version": 1,
+    "disable_existing_loggers": False,
+    "formatters": {
+        "verbose": {
+            "format": "{levelname} - {asctime} - {module} - {message}",
+            "style": "{",
         },
     },
-    'handlers': {
-        'console': {
-            'class': 'logging.StreamHandler',
-            'formatter': 'verbose',
+    "handlers": {
+        "console": {
+            "class": "logging.StreamHandler",
+            "formatter": "verbose",
         },
-        'sentry': {
-            'level': 'WARNING',
-            'class':
-            'raven.contrib.django.raven_compat.handlers.SentryHandler',
+        "sentry": {
+            "level": "WARNING",
+            "class": "raven.contrib.django.raven_compat.handlers.SentryHandler",
         },
     },
-    'loggers': {
-        'django': {
-            'handlers': ['console'],
-            'level': os.getenv('DJANGO_LOG_LEVEL', 'INFO'),
-            'propagate': True,
+    "loggers": {
+        "django": {
+            "handlers": ["console"],
+            "level": os.getenv("DJANGO_LOG_LEVEL", "INFO"),
+            "propagate": True,
         },
-        '': {
-            'handlers': ['sentry'],
-            'level': os.getenv('DJANGO_LOG_LEVEL', 'INFO'),
+        "": {
+            "handlers": ["sentry"],
+            "level": os.getenv("DJANGO_LOG_LEVEL", "INFO"),
         },
     },
 }
@@ -213,14 +208,14 @@
 # REST framework
 
 REST_FRAMEWORK = {
-    'DEFAULT_PERMISSION_CLASSES': [
-        'rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly'
+    "DEFAULT_PERMISSION_CLASSES": [
+        "rest_framework.permissions.DjangoModelPermissionsOrAnonReadOnly"
     ],
-    'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
-    'PAGE_SIZE': 10,
-    'DEFAULT_FILTER_BACKENDS': ['django_filters.rest_framework.DjangoFilterBackend']
+    "DEFAULT_PAGINATION_CLASS": "rest_framework.pagination.PageNumberPagination",
+    "PAGE_SIZE": 10,
+    "DEFAULT_FILTER_BACKENDS": ["django_filters.rest_framework.DjangoFilterBackend"],
 }
 
 # Tests
 
-SELENIUM_DRIVER = config('SELENIUM_DRIVER', default='firefox').lower()
+SELENIUM_DRIVER = config("SELENIUM_DRIVER", default="firefox").lower()
diff --git a/materials/forms.py b/materials/forms.py
index 744e84f..410f1bf 100644
--- a/materials/forms.py
+++ b/materials/forms.py
@@ -27,7 +27,8 @@ def __init__(self, model=None, field=None, *args, **kwargs):
 class AddReferenceForm(forms.Form):
     inputRISFile = forms.FileField(
         required=False,
-        widget=forms.ClearableFileInput(attrs={'multiple': True, 'onchange':'handleFileSelect();' }),
+        widget=forms.ClearableFileInput(attrs={'allow_multiple_selected': True, 'onchange':'handleFileSelect();' }),
+        # widget=forms.ClearableFileInput(attrs={'multiple': True, 'onchange':'handleFileSelect();' }),
         help_text='Upload RIS file reference'
     )
     title = forms.CharField(
@@ -558,7 +559,8 @@ class AddDataForm(forms.Form):
     # Uploads
     uploaded_files = forms.FileField(
         required=False,
-        widget=forms.ClearableFileInput(attrs={'multiple': True}),
+        widget=forms.ClearableFileInput(attrs={'allow_multiple_selected': True}),
+        # widget=forms.ClearableFileInput(attrs={'allow_multiple_selected': True}),
         help_text=''
         'Upload files containing anything that is relevant to the current '
         'data (input files to a calculation, image of the sample, ...). '
diff --git a/requirements.txt b/requirements.txt
index b12b1dc..6eb1e4d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,18 +1,18 @@
-Django==3.1.14
-matplotlib==3.0.2
-mysqlclient==1.4.2
-numpy==1.21.0
-Pillow==9.0.1
-python-dateutil==2.8.0
-sentry-sdk==0.7.3
-raven==6.10.0
-python-decouple==3.1
-django-nested-admin==3.2.4
-djangorestframework==3.12.2
-coverage==4.5.3
-selenium==3.141.0
-requests==2.22.0
-Sphinx==2.2.0
-gunicorn==19.9.0
+Django
+matplotlib
+mysqlclient
+numpy
+Pillow
+python-dateutil
+sentry-sdk
+raven
+python-decouple
+django-nested-admin
+djangorestframework
+coverage
+selenium
+requests
+Sphinx
+gunicorn
 sphinx_rtd_theme
-django-filter>=2.4.0
+django-filter