diff --git a/pkgs/development/libraries/amrnb/default.nix b/pkgs/development/libraries/amrnb/default.nix
index a2ed7393493..7790f8e124b 100644
--- a/pkgs/development/libraries/amrnb/default.nix
+++ b/pkgs/development/libraries/amrnb/default.nix
@@ -1,15 +1,15 @@
 {stdenv, fetchurl, unzip}:
 
 stdenv.mkDerivation {
-  name = "amrnb-7.0.0.2";
+  name = "amrnb-11.0.0.0";
   srcAmr = fetchurl {
-    url = http://www.3gpp.org/ftp/Specs/latest/Rel-7/26_series/26104-700.zip;
-    sha256 = "0hgm8dddrqiinjdjxnsw0x899czjlvplq69z4kv8y4zqnrjlwzni";
+    url = http://www.3gpp.org/ftp/Specs/latest/Rel-11/26_series/26104-b00.zip;
+    sha256 = "1wf8ih0hk7w20vdlnw7jb7w73v15hbxgbvmq4wq7h2ghn0j8ppr3";
   };
 
   src = fetchurl {
-    url = http://ftp.penguin.cz/pub/users/utx/amr/amrnb-7.0.0.2.tar.bz2;
-    sha256 = "0z4wjr0jml973vd0dvxlmy34daiswy5axlmpvc85k8qcr08i8zaa";
+    url = http://ftp.penguin.cz/pub/users/utx/amr/amrnb-11.0.0.0.tar.bz2;
+    sha256 = "1qgiw02n2a6r32pimnd97v2jkvnw449xrqmaxiivjy2jcr5h141q";
   };
 
   buildInputs = [ unzip ];
@@ -17,7 +17,7 @@ stdenv.mkDerivation {
   configureFlags = [ "--cache-file=config.cache" "--with-downloader=true" ];
 
   postConfigure = ''
-    cp $srcAmr 26104-700.zip 
+    cp $srcAmr 26104-b00.zip 
   '';
 
   meta = {