diff --git a/bio/diamond/blastx/environment.yaml b/bio/diamond/blastx/environment.yaml
index 7cdd37548d..908f32b9ff 100644
--- a/bio/diamond/blastx/environment.yaml
+++ b/bio/diamond/blastx/environment.yaml
@@ -3,4 +3,4 @@ channels:
   - bioconda
   - nodefaults
 dependencies:
-  - diamond =2.1.6
+  - diamond =2.1.8