diff --git a/krebs/2configs/binary-cache/prism.nix b/krebs/2configs/binary-cache/prism.nix
index 46b386e14..51b4a1afc 100644
--- a/krebs/2configs/binary-cache/prism.nix
+++ b/krebs/2configs/binary-cache/prism.nix
@@ -3,7 +3,7 @@
 {
   nix = {
     binaryCaches = [
-      "http://cache.prism.r"
+      "https://cache.krebsco.de"
     ];
     binaryCachePublicKeys = [
       "cache.prism-1:+S+6Lo/n27XEtvdlQKuJIcb1yO5NUqUCE2lolmTgNJU="