diff --git a/pkgs/development/compilers/gcc-4.5/default.nix b/pkgs/development/compilers/gcc-4.5/default.nix
index 6145050e9f0..abe6186ef96 100644
--- a/pkgs/development/compilers/gcc-4.5/default.nix
+++ b/pkgs/development/compilers/gcc-4.5/default.nix
@@ -42,7 +42,7 @@ assert libelf != null -> zlib != null;
 with stdenv.lib;
 with builtins;
 
-let version = "4.5.1";
+let version = "4.5.2";
     javaEcj = fetchurl {
       # The `$(top_srcdir)/ecj.jar' file is automatically picked up at
       # `configure' time.
diff --git a/pkgs/development/compilers/gcc-4.5/sources.nix b/pkgs/development/compilers/gcc-4.5/sources.nix
index 6059e03880b..6e702f79ed0 100644
--- a/pkgs/development/compilers/gcc-4.5/sources.nix
+++ b/pkgs/development/compilers/gcc-4.5/sources.nix
@@ -1,26 +1,26 @@
 /* Automatically generated by `update-gcc.sh', do not edit.
-   For GCC 4.5.1.  */
+   For GCC 4.5.2.  */
 { fetchurl, optional, version, langC, langCC, langFortran, langJava, langAda }:
 
-assert version == "4.5.1";
+assert version == "4.5.2";
 optional /* langC */ true (fetchurl {
   url = "mirror://gcc/releases/gcc-${version}/gcc-core-${version}.tar.bz2";
-  sha256 = "0sjjw3qfcpdk0fs5d2rhl0xqcaclg86ifbq45dbk9ca072l3fyxm";
+  sha256 = "d1099165702ccdfd65f2411ed8d1015452190fe6bc7b87baf124794e5c8e7464";
 }) ++
 optional langCC (fetchurl {
   url = "mirror://gcc/releases/gcc-${version}/gcc-g++-${version}.tar.bz2";
-  sha256 = "0j6ffb96b3r75hrjshg52llv21ax7r8jdx44hhj0maiisnl9wd55";
+  sha256 = "fdd45dc9158d1d5a1c2ef0054b353d5f403e29ec360c1f8e058dc7e4531fe83b";
 }) ++
 optional langFortran (fetchurl {
   url = "mirror://gcc/releases/gcc-${version}/gcc-fortran-${version}.tar.bz2";
-  sha256 = "0xgwjc3h5fc5c100bnw24c35255il33lj5qbgpxf0zl8di2q13aw";
+  sha256 = "19c3c8a4b23c880a369d3229ef65406fde6af47f5127d494a87f19e1de3d9a13";
 }) ++
 optional langJava (fetchurl {
   url = "mirror://gcc/releases/gcc-${version}/gcc-java-${version}.tar.bz2";
-  sha256 = "0mh37q4ibg05h1hdh39pkj1hycvdg6i79m4698knw7pppm14ax8q";
+  sha256 = "c120e2dc39dd707a3d5461744b879e41f5e642661d7b8a023fc620b24bb7a2ab";
 }) ++
 optional langAda (fetchurl {
   url = "mirror://gcc/releases/gcc-${version}/gcc-ada-${version}.tar.bz2";
-  sha256 = "11chdbl7h046lnl83k79vj7dvgxz6kq7cnmwx94z644vaiflg153";
+  sha256 = "7ed5bb26b72dfbfaf533d09e3d34df96305c09f57f5da67939087fb2726cc771";
 }) ++
 []