diff --git a/requirements.txt b/requirements.txt
index 1da39e18..f5ebc56e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,3 +21,4 @@ xarray>=2023.11.0
 xclim==0.52.2 # remember to match xclim version in environment.yml as well
 xesmf>=0.6.2,!=0.8.8
 xscen
+werkzeug>=3.0.6 # not directly required, pinned by Snyk to avoid a vulnerability