1 files changed, 3 insertions, 3 deletions
diff --git a/pkgs/development/libraries/incrtcl/default.nix b/pkgs/development/libraries/incrtcl/default.nix
index f74477eab38..e7f575b04be 100644
--- a/pkgs/development/libraries/incrtcl/default.nix
+++ b/pkgs/development/libraries/incrtcl/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation {
   pname = "incrtcl";
-  version = "4.0.4";
+  version = "4.2.0";
 
   src = fetchurl {
-    url = mirror://sourceforge/incrtcl/%5BIncr%20Tcl_Tk%5D-source/3.4/itcl4.0.4.tar.gz;
-    sha256 = "1ppc9b13cvmc6rp77k7dl2zb26xk0z30vxygmr4h1xr2r8w091k3";
+    url = mirror://sourceforge/incrtcl/%5BIncr%20Tcl_Tk%5D-source/3.4/itcl4.2.0.tar.gz;
+    sha256 = "0w28v0zaraxcq1s9pa6cihqqwqvvwfgz275lks7w4gl7hxjxmasw";
   };
 
   buildInputs = [ tcl ];