diff --git a/checks/lib/container-driver/test_driver/logger.py b/checks/lib/container-driver/test_driver/logger.py
index 309801b84..920333149 100644
--- a/checks/lib/container-driver/test_driver/logger.py
+++ b/checks/lib/container-driver/test_driver/logger.py
@@ -241,7 +241,7 @@ class TerminalLogger(AbstractLogger):
 
 class XMLLogger(AbstractLogger):
     def __init__(self, outfile: str) -> None:
-        self.logfile_handle = codecs.open(outfile, "wb")
+        self.logfile_handle = codecs.open(outfile, "wb")  # noqa: SIM115
         self.xml = XMLGenerator(self.logfile_handle, encoding="utf-8")
         self.queue: Queue[dict[str, str]] = Queue()
 
diff --git a/flake.lock b/flake.lock
index 6b7202b31..7fca7a00d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -78,11 +78,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1728538411,
-        "narHash": "sha256-f0SBJz1eZ2yOuKUr5CA9BHULGXVSn6miBuUWdTyhUhU=",
+        "lastModified": 1729265718,
+        "narHash": "sha256-4HQI+6LsO3kpWTYuVGIzhJs1cetFcwT7quWCk/6rqeo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b69de56fac8c2b6f8fd27f2eca01dcda8e0a4221",
+        "rev": "ccc0c2126893dd20963580b6478d1a10a4512185",
         "type": "github"
       },
       "original": {
diff --git a/pkgs/clan-cli/default.nix b/pkgs/clan-cli/default.nix
index 913cb5693..3357f98a1 100644
--- a/pkgs/clan-cli/default.nix
+++ b/pkgs/clan-cli/default.nix
@@ -16,6 +16,7 @@
   runCommand,
   setuptools,
   stdenv,
+  nixVersions,
 
   # custom args
   clan-core-path,
@@ -67,24 +68,33 @@ let
   '';
 
   # Create a custom nixpkgs for use within the project
-  nixpkgs' = runCommand "nixpkgs" { nativeBuildInputs = [ nix ]; } ''
-    mkdir $out
-    cat > $out/flake.nix << EOF
-    {
-      description = "dependencies for the clan-cli";
 
-      inputs = {
-        nixpkgs.url = "path://${nixpkgs}";
-      };
+  nixpkgs' =
+    runCommand "nixpkgs"
+      {
+        nativeBuildInputs = [
+          # old nix version doesn't support --flake flag
+          (if lib.versionAtLeast nix.version "2.24" then nix else nixVersions.latest)
+        ];
+      }
+      ''
+        mkdir $out
+        cat > $out/flake.nix << EOF
+        {
+          description = "dependencies for the clan-cli";
 
-      outputs = _inputs: { };
-    }
-    EOF
-    ln -sf ${nixpkgs} $out/path
-    nix flake update $out \
-      --store ./. \
-      --extra-experimental-features 'nix-command flakes'
-  '';
+          inputs = {
+            nixpkgs.url = "path://${nixpkgs}";
+          };
+
+          outputs = _inputs: { };
+        }
+        EOF
+        ln -sf ${nixpkgs} $out/path
+        HOME=$TMPDIR nix flake update --flake $out \
+          --store ./. \
+          --extra-experimental-features 'nix-command flakes'
+      '';
 in
 python3.pkgs.buildPythonApplication {
   name = "clan-cli";
diff --git a/pkgs/clan-vm-manager/clan_vm_manager/components/trayicon.py b/pkgs/clan-vm-manager/clan_vm_manager/components/trayicon.py
index ccdbee6e8..e126faf73 100644
--- a/pkgs/clan-vm-manager/clan_vm_manager/components/trayicon.py
+++ b/pkgs/clan-vm-manager/clan_vm_manager/components/trayicon.py
@@ -531,12 +531,12 @@ class StatusNotifierImplementation(BaseImplementation):
             ):
                 self.add_method(method_name, in_args, out_args, callback)
 
-            for signal_name, value in (
+            for signal_name, signal_value in (
                 ("NewIcon", ()),
                 ("NewIconThemePath", ("s",)),
                 ("NewStatus", ("s",)),
             ):
-                self.add_signal(signal_name, value)
+                self.add_signal(signal_name, signal_value)
 
         def register(self):
             self.menu.register()