diff --git a/flake.lock b/flake.lock
index 22e55a8..d691037 100644
--- a/flake.lock
+++ b/flake.lock
@@ -37,11 +37,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1750844689,
-        "narHash": "sha256-dbEfd1KXb3gWGyh0WsgIc6IZn4RkBYCamZozaO3zrcI=",
-        "rev": "4b1164c3215f018c4442463a27689d973cffd750",
+        "lastModified": 1750915984,
+        "narHash": "sha256-H35GgPwCiZF7vOX6y6/9cbC3Bt8xZyZgy3p2VIENRfM=",
+        "rev": "30a61f056ac492e3b7cdcb69c1e6abdcf00e39cf",
         "type": "tarball",
-        "url": "https://releases.nixos.org/nixos/unstable/nixos-25.11pre820697.4b1164c3215f/nixexprs.tar.xz?rev=4b1164c3215f018c4442463a27689d973cffd750"
+        "url": "https://releases.nixos.org/nixos/unstable/nixos-25.11pre820854.30a61f056ac4/nixexprs.tar.xz?rev=30a61f056ac492e3b7cdcb69c1e6abdcf00e39cf"
       },
       "original": {
         "type": "tarball",
@@ -65,11 +65,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1750819193,
-        "narHash": "sha256-XvkupGPZqD54HuKhN/2WhbKjAHeTl1UEnWspzUzRFfA=",
+        "lastModified": 1750964660,
+        "narHash": "sha256-YQ6EyFetjH1uy5JhdhRdPe6cuNXlYpMAQePFfZj4W7M=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "1ba3b9c59b68a4b00156827ad46393127b51b808",
+        "rev": "04f0fcfb1a50c63529805a798b4b5c21610ff390",
         "type": "github"
       },
       "original": {
@@ -100,11 +100,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1749194973,
-        "narHash": "sha256-eEy8cuS0mZ2j/r/FE0/LYBSBcIs/MKOIVakwHVuqTfk=",
+        "lastModified": 1750931469,
+        "narHash": "sha256-0IEdQB1nS+uViQw4k3VGUXntjkDp7aAlqcxdewb/hAc=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "a05be418a1af1198ca0f63facb13c985db4cb3c5",
+        "rev": "ac8e6f32e11e9c7f153823abc3ab007f2a65d3e1",
         "type": "github"
       },
       "original": {
diff --git a/src/config.rs b/src/config.rs
index d8523b2..05861c2 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -242,10 +242,7 @@ fn default_values_config_snapshot() {
     {
       "address": "127.0.0.1:5353",
       "salt": "UpdateMyDNS",
-      "ttl": {
-        "secs": 60,
-        "nanos": 0
-      },
+      "ttl": "1m",
       "ip_source": "RightmostXForwardedFor",
       "ip_type": "Both"
     }