diff --git a/flake.nix b/flake.nix
index ba4b897..bbed851 100644
--- a/flake.nix
+++ b/flake.nix
@@ -59,6 +59,12 @@
         inputs = inputs;
         pkgs-unstable = import nixpkgs-unstable {
           inherit system;
+          config.permittedInsecurePackages = [
+            "aspnetcore-runtime-6.0.36"
+            "aspnetcore-runtime-wrapped-6.0.36"
+            "dotnet-sdk-6.0.428"
+            "dotnet-sdk-wrapped-6.0.428"
+          ];
         };
         pkgs-4a3fc4cf7 = import nixpkgs-4a3fc4cf7 {
           inherit system;