diff --git a/geoportal/luxembourg_requirements.txt b/geoportal/luxembourg_requirements.txt
index 165186578..39b1156b2 100644
--- a/geoportal/luxembourg_requirements.txt
+++ b/geoportal/luxembourg_requirements.txt
@@ -13,7 +13,7 @@ bleach
 html5lib
 CairoSVG
 WeasyPrint==0.42.3
-PyPDF2
+PyPDF2==2.12.1
 marrow.mailer
 webtest
 beautifulsoup4