diff --git a/devenv.lock b/devenv.lock
index e82265f32..7193bef33 100644
--- a/devenv.lock
+++ b/devenv.lock
@@ -3,10 +3,10 @@
     "devenv": {
       "locked": {
         "dir": "src/modules",
-        "lastModified": 1749550420,
+        "lastModified": 1753201456,
         "owner": "cachix",
         "repo": "devenv",
-        "rev": "851a96d662ab265a15212ae4a4ec242a7c420d6f",
+        "rev": "39662b2c5b94ad06573c9aac4fe9f671260d1587",
         "type": "github"
       },
       "original": {
@@ -40,10 +40,10 @@
         ]
       },
       "locked": {
-        "lastModified": 1747372754,
+        "lastModified": 1750779888,
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "80479b6ec16fefd9c1db3ea13aeb038c60530f46",
+        "rev": "16ec914f6fb6f599ce988427d9d94efddf25fe6d",
         "type": "github"
       },
       "original": {
@@ -74,10 +74,10 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1746807397,
+        "lastModified": 1750441195,
         "owner": "cachix",
         "repo": "devenv-nixpkgs",
-        "rev": "c5208b594838ea8e6cca5997fbf784b7cca1ca90",
+        "rev": "0ceffe312871b443929ff3006960d29b120dc627",
         "type": "github"
       },
       "original": {
@@ -89,10 +89,10 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1749285348,
+        "lastModified": 1752950548,
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3e3afe5174c561dee0df6f2c2b2236990146329f",
+        "rev": "c87b95e25065c028d31a94f06a62927d18763fdf",
         "type": "github"
       },
       "original": {
diff --git a/devenv.nix b/devenv.nix
index 0ff5708ee..54452e281 100644
--- a/devenv.nix
+++ b/devenv.nix
@@ -25,7 +25,7 @@ in {
     python3Packages.brotli
   ] ++ lib.optionals (!pkgs.stdenv.isDarwin) [
     # Frontend tools (exclude on Darwin)
-    cypress
+    pkgs-unstable.cypress
   ];
   
   languages = {