diff --git a/pkgs/tools/misc/fd/default.nix b/pkgs/tools/misc/fd/default.nix
index c46566aeabe5..07d8a661d7b7 100644
--- a/pkgs/tools/misc/fd/default.nix
+++ b/pkgs/tools/misc/fd/default.nix
@@ -2,16 +2,16 @@
 
 rustPlatform.buildRustPackage rec {
   name = "fd-${version}";
-  version = "3.1.0";
+  version = "4.0.0";
 
   src = fetchFromGitHub {
     owner = "sharkdp";
     repo = "fd";
     rev = "v${version}";
-    sha256 = "0sv7iwl44a86n92i3mib2vlzd44q9ncif34yh1s0vqffai5s1rr6";
+    sha256 = "1aw4pgsmvzzqlvbxzv5jnw42nf316qfhvr50b58iqi2dxy8z8cmv";
   };
 
-  depsSha256 = "1irfx78k899qphzj8i8vr34pb6zaf9p5nx5c4zpgsrbknvn0ag5l";
+  depsSha256 = "17fjlmdwp8582dvv68b5h3zzvmd71yd9sw9xalyrrww46h7fd84g";
 
   meta = {
     description = "A simple, fast and user-friendly alternative to find";
diff --git a/pkgs/top-level/rust-packages.nix b/pkgs/top-level/rust-packages.nix
index a4fd5ca54ee2..92230993d58f 100644
--- a/pkgs/top-level/rust-packages.nix
+++ b/pkgs/top-level/rust-packages.nix
@@ -7,13 +7,13 @@
 { stdenv, fetchFromGitHub, git }:
 
 stdenv.mkDerivation {
-  name = "rustRegistry-2017-10-03";
+  name = "rustRegistry-2017-10-08";
 
   src = fetchFromGitHub {
     owner = "rust-lang";
     repo = "crates.io-index";
-    rev = "f9e21955350caf67db45c4a4a38dbab2f2250bfc";
-    sha256 = "1yk0l0r9idn7crnnw44sig69kvvyq3ycv417s88hd16m1fpl5y77";
+    rev = "78ab44cf22c2ce5d40e562ffc7df7ab10ac12b86";
+    sha256 = "0fa3l3px6b89ap63h40bhn2x50zf5j65jrgbb7j103j0cdayk2l0";
   };
   phases = [ "unpackPhase" "installPhase" ];
   installPhase = ''