diff --git a/profiles/iohk.nix b/profiles/iohk.nix
index 410d483..87e7fe8 100644
--- a/profiles/iohk.nix
+++ b/profiles/iohk.nix
@@ -9,14 +9,14 @@
     binaryCaches = [
       "https://cache.nixos.org"
       "https://hydra.iohk.io"
-      "https://iohk.cachix.org"
+      "https://hydra.mantis.ist"
       "s3://iohk-vit-bitte/infra/binary-cache/?region=eu-central-1"
     ];
     binaryCachePublicKeys = [
       "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
       "hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ="
       "iohk.cachix.org-1:DpRUyj7h7V830dp/i6Nti+NEO2/nhblbov/8MW7Rqoo="
-      "mantis-ops.cachix.org-1:SornDcX8/9rFrpTjU+mAAb26sF8mUpnxgXNjmKGcglQ="
+      "hydra.mantis.ist-1:4LTe7Q+5pm8+HawKxvmn2Hx0E3NbkYjtf1oWv+eAmTo="
       "vit-testnet-0:0lvkEoYh+XrBh7pr4bXjsUisUkUxsyLvvWBIJwym/RM="
     ];
     extraOptions = ''