diff --git a/default.nix b/default.nix
index 9ef66af..19bfc61 100644
--- a/default.nix
+++ b/default.nix
@@ -11,7 +11,7 @@ let
 in
 stdenv.mkDerivation {
   pname = "nix-eval-jobs";
-  version = "2.90.0-unstable";
+  version = "2.91.0-unstable";
   src = if srcDir == null then filterMesonBuild ./. else srcDir;
   buildInputs = with pkgs; [
     nlohmann_json
diff --git a/flake.lock b/flake.lock
index 3efca89..ca31135 100644
--- a/flake.lock
+++ b/flake.lock
@@ -47,15 +47,15 @@
         "pre-commit-hooks": "pre-commit-hooks"
       },
       "locked": {
-        "lastModified": 1723577950,
-        "narHash": "sha256-kOpGI9WPmte1L4QWHviuXsr8jxmGn27zwi82jtzYObM=",
-        "rev": "b016eb0895bb6714a4f6530d9a2bb6577ac6c3cf",
+        "lastModified": 1723503927,
+        "narHash": "sha256-p2ZBGGLixOV2Hwz3FQoj/i+5/kzfyRc7fYbNcz5ddtE=",
+        "rev": "4d04adf6ba170a6658414be121b48924813fdff4",
         "type": "tarball",
-        "url": "https://git.lix.systems/api/v1/repos/lix-project/lix/archive/b016eb0895bb6714a4f6530d9a2bb6577ac6c3cf.tar.gz?rev=b016eb0895bb6714a4f6530d9a2bb6577ac6c3cf"
+        "url": "https://git.lix.systems/api/v1/repos/lix-project/lix/archive/4d04adf6ba170a6658414be121b48924813fdff4.tar.gz?rev=4d04adf6ba170a6658414be121b48924813fdff4"
       },
       "original": {
         "type": "tarball",
-        "url": "https://git.lix.systems/lix-project/lix/archive/main.tar.gz"
+        "url": "https://git.lix.systems/lix-project/lix/archive/release-2.91.tar.gz"
       }
     },
     "nix-github-actions": {
diff --git a/flake.nix b/flake.nix
index a2cc479..acd4ed6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -9,7 +9,7 @@
   inputs.nix-github-actions.url = "github:nix-community/nix-github-actions";
   inputs.nix-github-actions.inputs.nixpkgs.follows = "nixpkgs";
   inputs.lix = {
-    url = "https://git.lix.systems/lix-project/lix/archive/main.tar.gz";
+    url = "https://git.lix.systems/lix-project/lix/archive/release-2.91.tar.gz";
     inputs.nixpkgs.follows = "nixpkgs";
   };