diff --git a/modules/generic/nix.nix b/modules/generic/nix.nix
index 3357937..af43f90 100644
--- a/modules/generic/nix.nix
+++ b/modules/generic/nix.nix
@@ -43,6 +43,7 @@
         ];
 
       permittedInsecurePackages = [
+        "python3.13-ecdsa-0.19.1" # pytr
         # "nixos-config"
         # "electron-36.9.5"
         # "dotnet-sdk-6.0.428"
diff --git a/overlays/default.nix b/overlays/default.nix
index c32d3cc..5fb9987 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -33,4 +33,5 @@ in [
   (withChannels (import ./packages.nix))
   (withChannels (import ./unstable.nix))
   (withChannels (import ./spacedrive.nix))
+  (withChannels (import ./pytr.nix))
 ]
diff --git a/overlays/pytr.nix b/overlays/pytr.nix
new file mode 100644
index 0000000..bdf6f4e
--- /dev/null
+++ b/overlays/pytr.nix
@@ -0,0 +1,11 @@
+{...}: final: prev: {
+  pytr = prev.pytr.overrideAttrs (old: {
+    version = "0.4.5";
+    src = prev.fetchFromGitHub {
+      owner = "pytr-org";
+      repo = "pytr";
+      rev = "3cd0bb3b1301d89ff9c39de3cb34dc82c0c9af6d";
+      hash = "sha256-UStDQaZecrpbL9+IApyV49gVQZrGI7eDURtgHZJazrk=";
+    };
+  });
+}