diff --git a/requirements.txt b/requirements.txt
index c21c5ce377c7c80567f4b65ad9eddf3ab31f4e78..b0941122e94b1264793350cfb80060c9501fa2b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-km3pipe
+km3pipe>=8.18.1
 flask
 frozen-flask
 gunicorn