diff --git a/bio/delly/environment.yaml b/bio/delly/environment.yaml
index 317555d323e..36236c9c4e5 100644
--- a/bio/delly/environment.yaml
+++ b/bio/delly/environment.yaml
@@ -3,6 +3,6 @@ channels:
   - bioconda
   - nodefaults
 dependencies:
-  - delly =1.1
-  - bcftools =1.15
-  - snakemake-wrapper-utils =0.5
+  - delly =1.1.5
+  - bcftools =1.16
+  - snakemake-wrapper-utils =0.5.0