diff --git a/README.md b/README.md
index 7a3aede9108f6660722fe88fa5a013fbba1bbd5a..59477b0b18672bdb1ed2e5ef1fe6c9dbd37e3272 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ You need to install:
 In addition to above tools, you need to install pipeline-related tools:
 
 - cutadapt
+- alienTrimmer
 - fastqc
 - samtools
 - bowtie2