diff --git a/requirements.txt b/requirements.txt
index 5f509cc..db75e3a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,5 @@ pydantic==2.9.2
 pydantic-settings==2.5.2
 bcrypt==4.2.0
 itsdangerous==2.2.0
+factur-x==3.16
+pikepdf==10.5.0