diff --git a/stacks/pinot-noir-gcc13/packages_stack.yaml b/stacks/pinot-noir-gcc13/packages_stack.yaml
index 97f281e2b427dcad9ecf974e0786bfddf9aa427d..1b2647cf53a65437a8e20a66715479ca34f1de17 100644
--- a/stacks/pinot-noir-gcc13/packages_stack.yaml
+++ b/stacks/pinot-noir-gcc13/packages_stack.yaml
@@ -229,6 +229,9 @@ packages:
   py-pandas:
     prefer: ['@2.2.1']
 
+  py-pysam:
+    prefer: ['@0.22.1']
+
   # https://github.com/tensorflow/tensorflow/issues/63360#issuecomment-2142735122
   # MKL support seams not maintained
   py-tensorflow: