diff --git a/config/settings-default.yaml b/config/settings-default.yaml
index 7f8e8a6..4719090 100644
--- a/config/settings-default.yaml
+++ b/config/settings-default.yaml
@@ -42,7 +42,7 @@ request-time-limit:
 # How often to generate a new actor key for HTTP-signing requests
 actor-key-rotation:
   amount:               1
-  unit:                 hours
+  unit:                 days
 
 ###############################################################################
 # Development