diff --git a/build_envs/environment.yml b/build_envs/environment.yml
index a82f7cd..f2dfb23 100644
--- a/build_envs/environment.yml
+++ b/build_envs/environment.yml
@@ -1,8 +1,6 @@
 name: dg3n_build
 channels:
-  - defaults
   - conda-forge
-  - anaconda
   - nrel
 dependencies:
   - colorama