diff --git a/recipes/harpy/meta.yaml b/recipes/harpy/meta.yaml
index 0624638fa3f4e..7dd9fe1ffeb0c 100644
--- a/recipes/harpy/meta.yaml
+++ b/recipes/harpy/meta.yaml
@@ -34,14 +34,14 @@ requirements:
     - setuptools-scm >=3.4
   run:
     - apptainer
-    - bcftools =1.21
+    - bcftools =1.20
     - conda >24.7
     - pandas
     - pysam
     - python
     - rich-click
     - snakemake-minimal >7
-    - samtools =1.21
+    - samtools =1.20
     - seqtk
     - tabix