diff --git a/TES/tes/__init__.py b/TES/tes/__init__.py
index 0e2459d144244c7206e1d9405a9a9841d9bfaec5..370fe8ea287f5f053b8fddd1701a58cf4b48c243 100644
--- a/TES/tes/__init__.py
+++ b/TES/tes/__init__.py
@@ -12,6 +12,9 @@ import datetime
 app.config['PERMANENT_SESSION_LIFETIME'] = datetime.timedelta(seconds=3600)
 app.config['SESSION_REFRESH_EACH_REQUEST'] = True
 app.config['SESSION_COOKIE_NAME'] = 'tessession'
+app.config['SESSION_COOKIE_SECURE'] = True
+app.config['SESSION_COOKIE_HTTPONLY'] = True
+app.config['SESSION_COOKIE_SAMESITE'] = 'Strict'
 app.config['APPLICATION_ROOT'] = '/'
 if not app.config['LOCAL_DEV']:
     app.config['APPLICATION_ROOT'] = '/tes'