diff --git a/pkgs/applications/misc/tdrop/default.nix b/pkgs/applications/misc/tdrop/default.nix
index e8c42ab48d704a..66708aa8135d8c 100644
--- a/pkgs/applications/misc/tdrop/default.nix
+++ b/pkgs/applications/misc/tdrop/default.nix
@@ -2,15 +2,15 @@
 , xwininfo, xdotool, xprop, gawk, coreutils
 , gnugrep, procps }:
 
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   pname = "tdrop";
-  version = "unstable-2020-05-14";
+  version = "0.4.0";
 
   src = fetchFromGitHub {
     owner = "noctuid";
     repo = "tdrop";
-    rev = "a9f2862515e5c190ac61d394e7fe7e1039871b89";
-    sha256 = "1zxhihgba33k8byjsracsyhby9qpdngbly6c8hpz3pbsyag5liwc";
+    rev = version;
+    sha256 = "sha256-1umHwzpv4J8rZ0c0q+2dPsEk4vhFB4UerwI8ctIJUZg=";
   };
 
   dontBuild = true;