diff --git a/lib/Utils.groovy b/lib/Utils.groovy
index 8d030f4..13cb02d 100644
--- a/lib/Utils.groovy
+++ b/lib/Utils.groovy
@@ -22,7 +22,7 @@ class Utils {
 
         // Check that all channels are present
         // This channel list is ordered by required channel priority.
-        def required_channels_in_order = ['conda-forge', 'bioconda', 'defaults']
+        def required_channels_in_order = ['conda-forge', 'bioconda']
         def channels_missing = ((required_channels_in_order as Set) - (channels as Set)) as Boolean
 
         // Check that they are in the right order