diff --git a/bio/paladin/index/environment.yaml b/bio/paladin/index/environment.yaml
index 1934c0dc36..824aa91b1f 100644
--- a/bio/paladin/index/environment.yaml
+++ b/bio/paladin/index/environment.yaml
@@ -3,5 +3,5 @@ channels:
   - bioconda
   - nodefaults
 dependencies:
-  - paladin=1.4.6
-  - samtools=1.15
+  - paladin =1.4.6
+  - samtools =1.16.1