diff --git a/pkgs/development/tools/build-managers/apache-ant/default.nix b/pkgs/development/tools/build-managers/apache-ant/default.nix
index 0dfb634c594..751b40e714e 100644
--- a/pkgs/development/tools/build-managers/apache-ant/default.nix
+++ b/pkgs/development/tools/build-managers/apache-ant/default.nix
@@ -1,6 +1,6 @@
 { fetchurl, stdenv, makeWrapper }:
 
-let version = "1.9.3"; in
+let version = "1.9.4"; in
 
 stdenv.mkDerivation {
   name = "ant-${version}";
@@ -9,7 +9,7 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     url = "mirror://apache/ant/binaries/apache-ant-${version}-bin.tar.bz2";
-    sha1 = "efcf206e24b0dd1583c501182ad163af277951a4";
+    sha256 = "1kw801p8h5x4f0g8i5yknppssrj5a3xy1aqrkpfnk22bd1snbh90";
   };
 
   contrib = fetchurl {