diff --git a/environment.yml b/environment.yml
index a9e04565d23c3fb2da92ed650a154952f472fc28..edb10b9dab29db6393b29be89893777e860521a0 100644
--- a/environment.yml
+++ b/environment.yml
@@ -1,6 +1,5 @@
 name: pyod
 dependencies:
-  - combo
   - keras
   - matplotlib
   - nose
@@ -9,10 +8,10 @@ dependencies:
   - pandas
   - scikit-learn
   - scipy
-  - suod
   - tensorflow
   - xgboost
   - pip
   - pip:
       - suod
       - combo
+