diff --git a/pkgs/development/libraries/xml-tooling-c/default.nix b/pkgs/development/libraries/xml-tooling-c/default.nix
index f2d7711c9f0..8e1d71fab3f 100644
--- a/pkgs/development/libraries/xml-tooling-c/default.nix
+++ b/pkgs/development/libraries/xml-tooling-c/default.nix
@@ -2,12 +2,12 @@
 
 stdenv.mkDerivation rec {
   name = "xml-tooling-c-${version}";
-  version = "1.6.0";
+  version = "1.6.3";
 
   src = fetchgit {
     url = "https://git.shibboleth.net/git/cpp-xmltooling.git";
-    rev = "db08101c3854518a59096be95ed6564838381744";
-    sha256 = "0rhzvxm4z3pm28kpk34hayhm12bjjms2kygv1z68vnz8ijzgcinq";
+    rev = version;
+    sha256 = "09z2pp3yy3kqx22vwgxyi3s0vlpdv9camw8dpi3q8piff6zxak3q";
   };
 
   buildInputs = [ boost curl openssl log4shib xercesc xml-security-c ];