diff --git a/apps/participation/forms.py b/apps/participation/forms.py
index 723e7e1..b128c80 100644
--- a/apps/participation/forms.py
+++ b/apps/participation/forms.py
@@ -11,7 +11,7 @@ from django.contrib.auth.models import User
 from django.core.exceptions import ValidationError
 from django.core.validators import FileExtensionValidator
 from django.utils.translation import gettext_lazy as _
-from pypdf import PdfFileReader
+from pypdf import PdfReader
 
 from .models import Note, Participation, Passage, Pool, Solution, Synthesis, Team, Tournament
 
@@ -151,7 +151,7 @@ class SolutionForm(forms.ModelForm):
                 raise ValidationError(_("The uploaded file size must be under 5 Mo."))
             if file.content_type != "application/pdf":
                 raise ValidationError(_("The uploaded file must be a PDF file."))
-            pdf_reader = PdfFileReader(file)
+            pdf_reader = PdfReader(file)
             pages = len(pdf_reader.pages)
             if pages > 30:
                 raise ValidationError(_("The PDF file must not have more than 30 pages."))