diff --git a/environment.yml b/environment.yml
index cee9dbd9..ef4833da 100644
--- a/environment.yml
+++ b/environment.yml
@@ -5,7 +5,7 @@ channels:
 dependencies:
 - python=3
 - pip
-- cutadapt>=3.5
+- cutadapt<4.0
 - multiqc==1.12
 - sra-tools
 - fastqc