diff --git a/pyproject.toml b/pyproject.toml
index f1d77b942..62aaf26d2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -82,7 +82,7 @@ dependencies = [
   "pycountry",
   "pycparser==2.21",
   "pycryptodome==3.20.*",
-  "pypdf==4.0.*",
+  "pypdf==3.9.*",
   "python-bidi==0.4.*",  # Support for Arabic in reportlab
   "python-dateutil==2.8.*",
   "pytz",