diff --git a/SalishSeaTools/requirements.txt b/SalishSeaTools/requirements.txt
index b7106b0d..1de8db2e 100644
--- a/SalishSeaTools/requirements.txt
+++ b/SalishSeaTools/requirements.txt
@@ -49,7 +49,7 @@ fastjsonschema==2.19.1
 fonttools==4.47.2
 fqdn==1.5.1
 gsw==3.6.17
-idna==3.6
+idna==3.7
 imagesize==1.4.1
 importlib-metadata==7.0.1
 importlib-resources==6.1.1