diff --git a/pkgs/tools/networking/chrony/default.nix b/pkgs/tools/networking/chrony/default.nix
index c188fbb7ccd8..74132e792447 100644
--- a/pkgs/tools/networking/chrony/default.nix
+++ b/pkgs/tools/networking/chrony/default.nix
@@ -6,11 +6,11 @@
 
 stdenv.mkDerivation rec {
   pname = "chrony";
-  version = "4.4";
+  version = "4.5";
 
   src = fetchurl {
     url = "https://download.tuxfamily.org/chrony/${pname}-${version}.tar.gz";
-    hash = "sha256-6vsH5tr5KxQiAPR4hW3+1u/J6i0Ubu3tXtywm5MScIg=";
+    hash = "sha256-Gf4dn0Zk1EWmmpbHHo/bYLzY3yTHPROG4CKH9zZq1CI=";
   };
 
   outputs = [ "out" "man" ];