diff --git a/requirements.txt b/requirements.txt
index 91db376..2e29799 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,6 @@
 zpl2==1.0
+# TODO: move to manifests
+pycups==1.9.73
+PyPDF2==1.18
+requests
+