diff --git a/pkgs/tools/networking/cjdns/default.nix b/pkgs/tools/networking/cjdns/default.nix
index 065a77400323f..452181754b171 100644
--- a/pkgs/tools/networking/cjdns/default.nix
+++ b/pkgs/tools/networking/cjdns/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchFromGitHub, nodejs, which, python27, utillinux }:
 
-let version = "20.5"; in
+let version = "20.6"; in
 stdenv.mkDerivation {
   name = "cjdns-"+version;
 
@@ -8,7 +8,7 @@ stdenv.mkDerivation {
     owner = "cjdelisle";
     repo = "cjdns";
     rev = "cjdns-v${version}";
-    sha256 = "13f174bmbyqna899naja4fzpma3yaw815ylksk8klcc3glg07v7b";
+    sha256 = "1d5rrnqb5dcmm5cg2ky1cgxz6ncb23n1j797j9zzw6xxdvkf3kgi";
   };
 
   buildInputs = [ which python27 nodejs ] ++