diff --git a/pkgs/tools/networking/chrony/default.nix b/pkgs/tools/networking/chrony/default.nix
index 1e2b39869c54..e11fb377c210 100644
--- a/pkgs/tools/networking/chrony/default.nix
+++ b/pkgs/tools/networking/chrony/default.nix
@@ -5,11 +5,11 @@ assert stdenv.isLinux -> libcap != null;
 stdenv.mkDerivation rec {
   name = "chrony-${version}";
 
-  version = "1.30";
+  version = "1.31";
   
   src = fetchurl {
     url = "http://download.tuxfamily.org/chrony/${name}.tar.gz";
-    sha256 = "1pa6629nigcv95x2q9dnmzlrwhicxizq9z7ggy2c9cmyl1bakb23";
+    sha256 = "0vcr4hr1a01l5c3z0rgzna8rbmq35aklgfr342pi9gpc8sp1qpm3";
   };
   
   buildInputs = [ readline texinfo ] ++ stdenv.lib.optional stdenv.isLinux libcap;