diff --git a/pkgs/development/libraries/tcltls/default.nix b/pkgs/development/libraries/tcltls/default.nix
index dc0504454f61..29c96bea421b 100644
--- a/pkgs/development/libraries/tcltls/default.nix
+++ b/pkgs/development/libraries/tcltls/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "tcltls-${version}";
-  version = "1.6";
+  version = "1.6.7";
 
   src = fetchurl {
     url = "mirror://sourceforge/tls/tls${version}-src.tar.gz";
-    sha256 = "adec50143a9ad634a671d24f7c7bbf2455487eb5f12d290f41797c32a98b93f3";
+    sha256 = "1f53sfcnrridjl5ayrq1xrqkahs8khf8c3d0m2brndbhahzdw6ai";
   };
 
   buildInputs = [ tcl openssl ];