diff --git a/pkgs/applications/misc/wsjtx/default.nix b/pkgs/applications/misc/wsjtx/default.nix
index 311983e8f527..23be3a5dc4fa 100644
--- a/pkgs/applications/misc/wsjtx/default.nix
+++ b/pkgs/applications/misc/wsjtx/default.nix
@@ -4,12 +4,12 @@
 
 stdenv.mkDerivation rec {
   name = "wsjtx-${version}";
-  version = "1.9.0";
+  version = "1.9.1";
 
   # This is a composite source tarball containing both wsjtx and a hamlib fork
   src = fetchurl {
     url = "http://physics.princeton.edu/pulsar/K1JT/wsjtx-${version}.tgz";
-    sha256 = "1qxwiylnykh37kw780hh9xfphzbj8ndpfqz4xazld16v3qx2g0jc";
+    sha256 = "143r17fri08mwz28g17wcfxy60h3xgfk46mln5lmdr9k6355aqqc";
   };
 
   # Hamlib builds with autotools, wsjtx builds with cmake