diff --git a/install2r-packages.txt b/install2r-packages.txt
index 66da64b..c368fa9 100644
--- a/install2r-packages.txt
+++ b/install2r-packages.txt
@@ -316,3 +316,6 @@ yaml
 zen4R
 zoo
 LBSPR
+redland
+pdftools
+nloptr