diff --git a/pkgs/tools/networking/htpdate/default.nix b/pkgs/tools/networking/htpdate/default.nix
index 9e4cf7846bdb..e821163f2298 100644
--- a/pkgs/tools/networking/htpdate/default.nix
+++ b/pkgs/tools/networking/htpdate/default.nix
@@ -1,14 +1,14 @@
 { stdenv, lib, fetchFromGitHub }:
 
 stdenv.mkDerivation rec {
-  version = "1.3.5";
+  version = "1.3.6";
   pname = "htpdate";
 
   src = fetchFromGitHub {
     owner = "twekkel";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-L3CKBgGk9R8qJFWOS98Tm1j/s/5t6+/Vt2EcZ+or0Ng=";
+    sha256 = "sha256-0NLlBNYTJ+hmQLH/UYwIOIbq3G1sDo/A03xFHsXdzig=";
   };
 
   makeFlags = [