diff --git a/eos-s3/environment.yml b/eos-s3/environment.yml
index 1e2afad..d09ac5e 100644
--- a/eos-s3/environment.yml
+++ b/eos-s3/environment.yml
@@ -1,6 +1,5 @@
 name: eos-s3
 channels:
-  - conda-forge
   - litex-hub
 dependencies:
   - litex-hub::quicklogic-yosys=0.8.0_105_gd282be04=20210625_074838