diff --git a/pkgs/tools/networking/cjdns/default.nix b/pkgs/tools/networking/cjdns/default.nix
index 28a418c27f2..8cc891cce19 100644
--- a/pkgs/tools/networking/cjdns/default.nix
+++ b/pkgs/tools/networking/cjdns/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "cjdns";
-  version = "21";
+  version = "21.1";
 
   src = fetchFromGitHub {
     owner = "cjdelisle";
     repo = "cjdns";
     rev = "cjdns-v${version}";
-    sha256 = "1s9d8yrdrj2gviig05jhr0fnzazb88lih0amxfk0av786rvh7ymj";
+    sha256 = "NOmk+vMZ8i0E2MjrUzksk+tkJ9XVVNEXlE5OOTNa+Y0=";
   };
 
   buildInputs = [ which python27 nodejs ] ++
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   meta = with stdenv.lib; {
     homepage = "https://github.com/cjdelisle/cjdns";
     description = "Encrypted networking for regular people";
-    license = licenses.gpl3;
+    license = licenses.gpl3Plus;
     maintainers = with maintainers; [ ehmry ];
     platforms = platforms.linux;
   };