diff --git a/pkgs/development/libraries/libiberty/default.nix b/pkgs/development/libraries/libiberty/default.nix
index eddc4eed55c0..6a68b5610da2 100644
--- a/pkgs/development/libraries/libiberty/default.nix
+++ b/pkgs/development/libraries/libiberty/default.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
-  version = "4.8.4";
+  version = "4.9.3";
   name = "libiberty-${version}";
 
   src = fetchurl {
     url = "mirror://gnu/gcc/gcc-${version}/gcc-${version}.tar.bz2";
-    sha256 = "15c6gwm6dzsaagamxkak5smdkf1rdfbqqjs9jdbrp3lbg4ism02a";
+    sha256 = "0zmnm00d2a1hsd41g34bhvxzvxisa2l584q3p447bd91lfjv4ci3";
   };
 
   postUnpack = "sourceRoot=\${sourceRoot}/libiberty";