diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 3dfd8fac4b8..cb77e11babd 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -5563,11 +5563,11 @@ pythonPackages = modules // import ./python-packages-generated.nix {
 
 
   trac = buildPythonPackage {
-    name = "trac-0.12.2";
+    name = "trac-1.0.1";
 
     src = fetchurl {
-      url = http://ftp.edgewall.com/pub/trac/Trac-0.12.2.tar.gz;
-      sha256 = "1ihf5031pc1wpwbxpfzzz2bcpwww795n5y22baglyim1lalivd65";
+      url = http://ftp.edgewall.com/pub/trac/Trac-1.0.1.tar.gz;
+      sha256 = "1nqa95fcnkpyq4jk6az7l7sqgm3b3pjq3bx1n7y4v3bad5jr1m4x";
     };
 
     # couple of failing tests