diff --git a/.gitignore b/.gitignore
index 819812b..1a136d3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 data/fastq/*
 data/metadata/*
 results/*
+plots/*
 
 # nextflow
 .nextflow/*
diff --git a/environment.yml b/environment.yml
index 38a5dd4..2b580a1 100644
--- a/environment.yml
+++ b/environment.yml
@@ -7,7 +7,7 @@ dependencies:
   - c-ares=1.34.5
   - ca-certificates=2025.11.12
   - coreutils=9.5
-  - covar=0.2.0
+  - covar=0.3.0
   - curl=8.17.0
   - git
   - htslib=1.21