diff --git a/masterenv.yml b/masterenv.yml
index 72755c4..175f53a 100644
--- a/masterenv.yml
+++ b/masterenv.yml
@@ -9,4 +9,6 @@ dependencies:
   - bedtools
   - python
   - r-essentials
-  - r-seqinr 
\ No newline at end of file
+  - r-seqinr
+  - numpy
+  - pybigWig