diff --git a/pkgs/tools/security/tor/default.nix b/pkgs/tools/security/tor/default.nix
index 1bda80dab45..b3b71a16eb8 100644
--- a/pkgs/tools/security/tor/default.nix
+++ b/pkgs/tools/security/tor/default.nix
@@ -14,11 +14,12 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "tor-0.3.5.7";
+  pname = "tor";
+  version = "0.4.0.5";
 
   src = fetchurl {
-    url = "https://dist.torproject.org/${name}.tar.gz";
-    sha256 = "17l31p58rsd30w4b6r4d8pbr84z3y7awahvjxbpmnlxc47y8f20v";
+    url = "https://dist.torproject.org/${pname}-${version}.tar.gz";
+    sha256 = "0vk9j3ybz5dwwbmqrdj1bjcsxy76pc8frmfvflkdzwfkvkqcp8mm";
   };
 
   outputs = [ "out" "geoip" ];