1 files changed, 1 insertions, 1 deletions

diff --git a/modules/certspotter.nix b/modules/certspotter.nix
index a708b1db..f8256654 100644
--- a/modules/certspotter.nix
+++ b/modules/certspotter.nix
@@ -10,7 +10,7 @@ let
     runtimeInputs = with pkgs; [ coreutils ];
     text = ''
       mkdir -p "''${LOGS_DIRECTORY}"
-      env > "$(mktemp -p "''${LOGS_DIRECTORY}" "$(date -seconds).XXXXXXXXXX.env")"
+      env > "$(mktemp -p "''${LOGS_DIRECTORY}" "$(date -Iseconds).XXXXXXXXXX.env")"
     '';
   };