diff --git a/devtools/conda-build/meta.yaml b/devtools/conda-build/meta.yaml
index ceb9ca1..f007a47 100644
--- a/devtools/conda-build/meta.yaml
+++ b/devtools/conda-build/meta.yaml
@@ -23,7 +23,7 @@ requirements:
     - pip
   run:
     - python >=3.9
-    - biopython
+    - biopython >=1.84
     - dssp
     - git
     - h5py