diff --git a/flake.nix b/flake.nix
index 950a332..90ef311 100644
--- a/flake.nix
+++ b/flake.nix
@@ -101,9 +101,11 @@
         
         # modify these
         scripts = {
+          # every 15 min
           "update_data"   = "*:0,15,30,45";  
-          #"new_users"     = "*:5,20,35,50";        
-          "update_groups" = "*:5,20,35,50";
+          #"new_users"     = "*:5,20,35,50";      
+          # groups are updated every 8 hours
+          "update_groups" = "00,08,16:00:00";
         };
 
       in {