diff --git a/ci/requirements.txt b/ci/requirements.txt
index 32af99e..c4b9180 100644
--- a/ci/requirements.txt
+++ b/ci/requirements.txt
@@ -8,5 +8,5 @@ cftime==1.6.4
 erddapy==2.2.3
 ctd==1.4.6 #python-ctd
 seawater==3.3.5
-bottleneck==1.4.0
+bottleneck==1.4.1
 #geomag cmweis github version... part of package