diff --git a/snappy_pipeline/workflows/somatic_variant_calling/Snakefile b/snappy_pipeline/workflows/somatic_variant_calling/Snakefile
index fd2edd5f..95fbb09b 100644
--- a/snappy_pipeline/workflows/somatic_variant_calling/Snakefile
+++ b/snappy_pipeline/workflows/somatic_variant_calling/Snakefile
@@ -2,14 +2,11 @@
 """CUBI Pipeline somatic_variant_calling step Snakefile"""
 
 import os
-from bisect import bisect
-from itertools import accumulate
 
 from snappy_pipeline import expand_ref
 from snappy_pipeline.workflows.somatic_variant_calling import (
     SomaticVariantCallingWorkflow,
 )
-from snappy_wrappers.tools.genome_windows import matches_any
 
 __author__ = "Manuel Holtgrewe <manuel.holtgrewe@bihealth.de>"