diff --git a/aviary/modules/assembly/envs/final_assembly.yaml b/aviary/modules/assembly/envs/final_assembly.yaml
index 7b819ffc..e23f4be5 100644
--- a/aviary/modules/assembly/envs/final_assembly.yaml
+++ b/aviary/modules/assembly/envs/final_assembly.yaml
@@ -2,5 +2,5 @@ channels:
   - conda-forge
   - bioconda
 dependencies:
-  - unicycler = 0.4.8
-  - samtools = 1.11
\ No newline at end of file
+  - unicycler = 0.5.1
+  - samtools = 1.21
\ No newline at end of file