diff --git a/default.nix b/default.nix
index c319ab5..da125bd 100644
--- a/default.nix
+++ b/default.nix
@@ -6,14 +6,12 @@ let
 
 in rec {
 
-  janus-gateway = callPackage ./pkgs/janus-gateway { inherit usrsctp; };
+  janus-gateway = callPackage ./pkgs/janus-gateway { };
 
   nextcloud-spreed-signaling = callPackage ./pkgs/nextcloud-spreed-signaling { };
 
   snipe-it = callPackage ./pkgs/snipe-it { };
 
-  usrsctp = callPackage ./pkgs/usrsctp { };
-
 } // optionalAttrs (pkgs.system == "x86_64-linux") {
 
   chrysalis-bin = callPackage ./pkgs/chrysalis-bin { };
diff --git a/flake.nix b/flake.nix
index 5e9ceee..a376b01 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,7 @@
 {
   description = "meterriblecrew.net package flake";
 
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-20.09-small";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-21.05-small";
 
   outputs = inputs@{ self, nixpkgs }: let
 
@@ -33,7 +33,6 @@
         inherit (localPkgs)
           janus-gateway
           nextcloud-spreed-signaling
-          usrsctp
           ;
       } // prev.lib.optionalAttrs (prev.system == "x86_64-linux") {
         inherit (localPkgs)
diff --git a/pkgs/usrsctp/default.nix b/pkgs/usrsctp/default.nix
deleted file mode 100644
index d1df318..0000000
--- a/pkgs/usrsctp/default.nix
+++ /dev/null
@@ -1,28 +0,0 @@
-{ lib, stdenv, fetchFromGitHub, which, libtool, autoconf, automake }:
-
-stdenv.mkDerivation rec {
-  pname = "usrsctp";
-  version = "0.9.5.0";
-
-  src = fetchFromGitHub {
-    owner = "sctplab";
-    repo = pname;
-    rev = version;
-    sha256 = "sha256-Sengtkg4UoA03cPy5+dRSr5qKIttWHEKn48udOP8zYI=";
-  };
-
-  nativeBuildInputs = [ which libtool autoconf automake ];
-
-  enableParallelBuilding = true;
-
-  NIX_CFLAGS_COMPILE = "-O2";
-
-  preConfigure = "./bootstrap";
-
-  meta = with lib; {
-    description = "A userland SCTP stack supporting FreeBSD, Linux, Mac OS X and Windows";
-    homepage = src.meta.homepage;
-    maintainers = with maintainers; [ aw ];
-    license = licenses.bsd3;
-  };
-}