diff --git a/pkgs/development/compilers/gcc/4.8/default.nix b/pkgs/development/compilers/gcc/4.8/default.nix
index 2035e0aaff06..ff1d388b6e23 100644
--- a/pkgs/development/compilers/gcc/4.8/default.nix
+++ b/pkgs/development/compilers/gcc/4.8/default.nix
@@ -56,7 +56,7 @@ assert langGo -> langCC;
 with stdenv.lib;
 with builtins;
 
-let version = "4.8.4";
+let version = "4.8.5";
 
     # Whether building a cross-compiler for GNU/Hurd.
     crossGNU = cross != null && cross.config == "i586-pc-gnu";
@@ -213,7 +213,7 @@ stdenv.mkDerivation ({
 
   src = fetchurl {
     url = "mirror://gnu/gcc/gcc-${version}/gcc-${version}.tar.bz2";
-    sha256 = "15c6gwm6dzsaagamxkak5smdkf1rdfbqqjs9jdbrp3lbg4ism02a";
+    sha256 = "08yggr18v373a1ihj0rg2vd6psnic42b518xcgp3r9k81xz1xyr2";
   };
 
   inherit patches;