diff --git a/tests/flake.lock b/tests/flake.lock
index cda957871..43fe59b61 100644
--- a/tests/flake.lock
+++ b/tests/flake.lock
@@ -15,11 +15,11 @@
     },
     "nixos-unstable-small": {
       "locked": {
-        "lastModified": 1781332575,
-        "narHash": "sha256-b5zDI290fPWS3GogqVonydrdcpQPsRCzLIOA3T0ctrs=",
-        "rev": "51effaf9783e0226281ad10e95a4af6c8a145316",
+        "lastModified": 1782915142,
+        "narHash": "sha256-QkXGknrUQY4cQU0sbUkNiC/p3pZ0rRd9hp9Ipv1tdvQ=",
+        "rev": "8465ac306246eef81317cd771e7c27c8ac415aef",
         "type": "tarball",
-        "url": "https://releases.nixos.org/nixos/unstable-small/nixos-26.11pre1015892.51effaf9783e/nixexprs.tar.xz"
+        "url": "https://releases.nixos.org/nixos/unstable-small/nixos-26.11pre1025869.8465ac306246/nixexprs.tar.xz"
       },
       "original": {
         "type": "tarball",