diff --git a/pkgs/tools/security/tor/default.nix b/pkgs/tools/security/tor/default.nix
index 527c8064bac..c39647ef95b 100644
--- a/pkgs/tools/security/tor/default.nix
+++ b/pkgs/tools/security/tor/default.nix
@@ -15,11 +15,11 @@
 
 stdenv.mkDerivation rec {
   pname = "tor";
-  version = "0.4.1.6";
+  version = "0.4.2.5";
 
   src = fetchurl {
     url = "https://dist.torproject.org/${pname}-${version}.tar.gz";
-    sha256 = "0wgdid8w7srd218hh4rwslzdx2ickxw1pg18p2wry1r6wi65521a";
+    sha256 = "1hnqg6psf7shcmlvfk44mkpaz7v66mify3cnx7mzl23q5s37anad";
   };
 
   outputs = [ "out" "geoip" ];