diff --git a/flake.nix b/flake.nix
index 115af84..5d799ab 100644
--- a/flake.nix
+++ b/flake.nix
@@ -19,7 +19,12 @@
         specialArgs = {
           pkgs-unstable = import nixpkgs-unstable {
             system = "x86_64-linux";
-            config.allowUnfree = true;
+            config = {
+              allowUnfree = true;
+              permittedInsecurePackages = [
+                "olm-3.2.16"  # Required by mautrix bridges
+              ];
+            };
           };
         };
         modules = [