diff --git a/mw_tool/requirements.txt b/mw_tool/requirements.txt
index 69b682a..8332154 100644
--- a/mw_tool/requirements.txt
+++ b/mw_tool/requirements.txt
@@ -1,3 +1,5 @@
 streamlit>=1.28.0
 pubchempy>=1.0.4
-rdkit>=2022.9.5
+requests>=2.25.0
+Pillow>=8.0.0
+molmass
\ No newline at end of file