diff --git a/flake.lock b/flake.lock
index 9aee536..e6fe5fb 100644
--- a/flake.lock
+++ b/flake.lock
@@ -51,11 +51,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1723400035,
-        "narHash": "sha256-WoKZDlBEdMhP+hjquBAh0BhUJbcH2+U8g2mHOr1mv8I=",
+        "lastModified": 1723556749,
+        "narHash": "sha256-+CHVZnTnIYRLYsARInHYoWkujzcRkLY/gXm3s5bE52o=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a731b45590a5169542990c36ffcde6cebd9a3356",
+        "rev": "4a92571f9207810b559c9eac203d1f4d79830073",
         "type": "github"
       },
       "original": {
@@ -137,15 +137,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1723576654,
-        "narHash": "sha256-FhojzGVZHWAc29eynCQOCQhLclyNeJTPq2xpxTvzZb8=",
+        "lastModified": 1723595954,
+        "narHash": "sha256-wRoQsj2Dg1qur8L0BzQBHxecGSOG5WesCOqTsqRjhGw=",
         "owner": "urob",
         "repo": "zephyr-nix",
-        "rev": "1e92e022e14a13a7b412f9a36393d4e5f63e8523",
+        "rev": "ae659ffa1cbf08368b10a94c2f36e13395c0d958",
         "type": "github"
       },
       "original": {
         "owner": "urob",
+        "ref": "testing",
         "repo": "zephyr-nix",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index 9d4d993..a1be4ce 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,7 +8,7 @@
     zephyr.flake = false;
 
     # Zephyr sdk and host tools
-    zephyr-nix.url = "github:urob/zephyr-nix";
+    zephyr-nix.url = "github:urob/zephyr-nix/testing";
     # zephyr-nix.inputs.nixpkgs.follows = "nixpkgs";
     zephyr-nix.inputs.zephyr.follows = "zephyr";
   };