diff --git a/conda.yml b/conda.yml
index 4a5bccc7..5443737c 100644
--- a/conda.yml
+++ b/conda.yml
@@ -1,6 +1,6 @@
 name: docs.nextstrain.org
 channels:
-  - defaults
+  - conda-forge
 dependencies:
   - graphviz
   - make