diff --git a/flake.lock b/flake.lock
index beb1c8e40..d6917f5a6 100644
--- a/flake.lock
+++ b/flake.lock
@@ -18,11 +18,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1776169885,
-        "narHash": "sha256-Gk2T0tDDDAs319hp/ak+bAIUG5bPMvnNEjPV8CS86Fg=",
-        "rev": "4bd9165a9165d7b5e33ae57f3eecbcb28fb231c9",
+        "lastModified": 1777578337,
+        "narHash": "sha256-fN6ynMvcdwPDB09LpWJNO5ogu+HFydrBWXJywoI/NNg=",
+        "rev": "15f4ee454b1dce334612fa6843b3e05cf546efab",
         "type": "tarball",
-        "url": "https://releases.nixos.org/nixos/unstable/nixos-26.05pre980183.4bd9165a9165/nixexprs.tar.xz"
+        "url": "https://releases.nixos.org/nixos/unstable/nixos-26.05pre990025.15f4ee454b1d/nixexprs.tar.xz"
       },
       "original": {
         "type": "tarball",