diff --git a/pkgs/development/tools/misc/dialog/default.nix b/pkgs/development/tools/misc/dialog/default.nix
index 8c236597484..82b224b37f4 100644
--- a/pkgs/development/tools/misc/dialog/default.nix
+++ b/pkgs/development/tools/misc/dialog/default.nix
@@ -13,14 +13,14 @@ assert unicodeSupport -> ncurses.unicode && ncurses != null;
 
 stdenv.mkDerivation rec {
   name = "dialog-${version}";
-  version = "1.3-20171209";
+  version = "1.3-20180621";
 
   src = fetchurl {
     urls = [
       "ftp://ftp.invisible-island.net/dialog/${name}.tgz"
       "https://invisible-mirror.net/archives/dialog/${name}.tgz"
     ];
-    sha256 = "1rk72as52f5br3wcr74d00wib41w65g8wvi36mfgybly251984r0";
+    sha256 = "0yjqczlf64yppgvk4i6s0jm06mdr0mb5m6sj39nf891dnbi5jj2a";
   };
 
   buildInputs = [ ncurses ];