diff --git a/environment.yml b/environment.yml
index 0d2a8d2..16115c2 100644
--- a/environment.yml
+++ b/environment.yml
@@ -171,4 +171,5 @@ dependencies:
     - widgetsnbextension==3.5.1
     - xlrd==2.0.1
     - yfinance==0.1.55
+    - multiprocessing
 prefix: /Users/prince.javier/opt/anaconda3/envs/atsa