diff --git a/pkgs/tools/security/tor/torbrowser.nix b/pkgs/tools/security/tor/torbrowser.nix
index 4ab0cabbcd3..34803f03cd1 100644
--- a/pkgs/tools/security/tor/torbrowser.nix
+++ b/pkgs/tools/security/tor/torbrowser.nix
@@ -20,13 +20,13 @@ let
 
 in stdenv.mkDerivation rec {
   name = "tor-browser-${version}";
-  version = "4.5.1";
+  version = "4.5.2";
 
   src = fetchurl {
     url = "https://archive.torproject.org/tor-package-archive/torbrowser/${version}/tor-browser-linux${bits}-${version}_en-US.tar.xz";
     sha256 = if bits == "64" then
-      "0nbjw04xbzb5d4q0j05nq9p8vdpzqxzhbywjxdgpc5mc73jyv8mr" else
-      "0fkzgdyxi7gl3kyfp0jmbky61a1b2yg9747h75bgkkndnqxnmkqw";
+      "139c85096ee85a65222753fbbee7c04e8cc494021f9afaf5c1a0f520dd7869b9" else
+      "960277aea38a3958f3ac573535302e61b3b0137169e5d7b9687cee648a5d5bec";
   };
 
   patchPhase = ''