diff --git a/pkgs/applications/window-managers/i3/gaps.nix b/pkgs/applications/window-managers/i3/gaps.nix
index b124ba0ea0ce..7be037ca8333 100644
--- a/pkgs/applications/window-managers/i3/gaps.nix
+++ b/pkgs/applications/window-managers/i3/gaps.nix
@@ -4,19 +4,14 @@ i3.overrideAttrs (oldAttrs : rec {
 
   name = "i3-gaps-${version}";
   version = "4.18.1";
-  releaseDate = "2019-01-27";
 
   src = fetchurl {
-    url = "https://github.com/Airblader/i3/archive/${version}.tar.gz";
-    sha256 = "07gk5m90v0ih7c18vcwx7p7innsccd09j2vkr99a33wk71xrww1z";
+    url = "https://github.com/Airblader/i3/releases/download/${version}/i3-${version}.tar.bz2";
+    sha256 = "1cxwsrdzp18r5hj0ymg9fbzp1mhkj4m9h6i0b9cdg79cjbacba9k";
   };
 
   nativeBuildInputs = oldAttrs.nativeBuildInputs ++ [ autoreconfHook ];
 
-  postUnpack = ''
-      echo -n "${version} (${releaseDate})" > ./i3-${version}/I3_VERSION
-  '';
-
   # fatal error: GENERATED_config_enums.h: No such file or directory
   enableParallelBuilding = false;