diff --git a/src/recipe.yaml b/src/recipe.yaml
index 49fad04..961ac98 100644
--- a/src/recipe.yaml
+++ b/src/recipe.yaml
@@ -61,8 +61,6 @@ requirements:
     #
     - awscli
     - bash
-      # Pin Biopython 1.81: https://github.com/nextstrain/augur/issues/1373
-    - biopython =1.81
     - bzip2
     - csvtk
     - curl