diff --git a/workflow/envs/readgroups.yml b/workflow/envs/readgroups.yml
deleted file mode 100644
index e69de29..0000000
diff --git a/workflow/envs/scanexitron.yml b/workflow/envs/scanexitron.yml
deleted file mode 100644
index cab6b79..0000000
--- a/workflow/envs/scanexitron.yml
+++ /dev/null
@@ -1,9 +0,0 @@
-channels:
-  - conda-forge
-  - bioconda
-  - defaults
-dependencies:
-  - samtools
-  - bedtools
-  - pyfaidx
-  - vcfpy
diff --git a/workflow/envs/slippage_removal.yml b/workflow/envs/slippage_removal.yml
deleted file mode 100644
index 9cc92b1..0000000
--- a/workflow/envs/slippage_removal.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-channels:
-- conda-forge
-- bioconda
-dependencies:
-- pyfaidx
-- pip
-- pip:
-  - vcfpy==0.13.6
diff --git a/workflow/envs/star.yml b/workflow/envs/star.yml
deleted file mode 100644
index fc5a73d..0000000
--- a/workflow/envs/star.yml
+++ /dev/null
@@ -1,6 +0,0 @@
-channels:
-- bioconda
-dependencies:
-- star=2.7.10b
-- biopython
-- samtools