diff --git a/calendar/flake.lock b/calendar/flake.lock
index af62f9e..e0b146a 100644
--- a/calendar/flake.lock
+++ b/calendar/flake.lock
@@ -2,16 +2,16 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1718437845,
-        "narHash": "sha256-ZT7Oc1g4I4pHVGGjQFnewFVDRLH5cIZhEzODLz9YXeY=",
+        "lastModified": 1750622754,
+        "narHash": "sha256-kMhs+YzV4vPGfuTpD3mwzibWUE6jotw5Al2wczI0Pv8=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "752c634c09ceb50c45e751f8791cb45cb3d46c9e",
+        "rev": "c7ab75210cb8cb16ddd8f290755d9558edde7ee1",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-24.05",
+        "ref": "nixos-25.05",
         "repo": "nixpkgs",
         "type": "github"
       }