diff --git a/flake.nix b/flake.nix
index 6701a83..9b8f89f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -33,6 +33,7 @@
 
           config.permittedInsecurePackages = [
             "openssl-1.1.1t"
+            "openssl-1.1.1u"
           ];
         };