diff --git a/pkgs/applications/misc/thinking-rock/default.nix b/pkgs/applications/misc/thinking-rock/default.nix
index aff60990b695..0fb87f9555c6 100644
--- a/pkgs/applications/misc/thinking-rock/default.nix
+++ b/pkgs/applications/misc/thinking-rock/default.nix
@@ -1,10 +1,10 @@
 args:
 args.stdenv.mkDerivation {
-  name = "thinkingrock-2.0.1-binary";
+  name = "thinkingrock-2.2.1-binary";
 
   src = args.fetchurl {
-    url = mirror://sourceforge/thinkingrock/tr-2.0.1.tar.gz;
-    sha256 = "1fsanxh0li8yqsspagx1w1ykmvfnm6h44i6gd02v05abx8q25jk1";
+    url = mirror://sourceforge/thinkingrock/files/ThinkingRock/TR%202.2.1/tr-2.2.1.tar.gz;
+    sha256 = "0hnwvvyc8miiz8w2g4iy7s4rgfy0kfbncgbgfzpsq6nrzq334kgm";
   };
 
   /* it would be a really bad idea to put thinkingrock tr executable in PATH!