diff --git a/pkgs/development/web/twitter-bootstrap/3.nix b/pkgs/development/web/twitter-bootstrap/3.nix
deleted file mode 100644
index 71cda3d3d9fc..000000000000
--- a/pkgs/development/web/twitter-bootstrap/3.nix
+++ /dev/null
@@ -1,26 +0,0 @@
-{ stdenv, fetchurl, unzip }:
-
-stdenv.mkDerivation rec {
-  name = "bootstrap-${version}";
-  version = "3.4.1";
-
-  src = fetchurl {
-    url = "https://github.com/twbs/bootstrap/releases/download/v${version}/bootstrap-${version}-dist.zip";
-    sha256 = "0bnrxyryl4kyq250k4n2lxgkddfs9lxhqd6gq8x3kg9wfz7r75yl";
-  };
-
-  buildInputs = [ unzip ];
-
-  dontBuild = true;
-  installPhase = ''
-    mkdir $out
-    cp -r * $out/
-  '';
-
-  meta = {
-    description = "Front-end framework for faster and easier web development";
-    homepage = https://getbootstrap.com/;
-    license = stdenv.lib.licenses.mit;
-  };
-
-}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f9235c30ffb8..1a2a88705d8d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6481,9 +6481,7 @@ in
     libX11 = xorg.libX11;
   };
 
-  twitterBootstrap3 = callPackage ../development/web/twitter-bootstrap/3.nix {};
-  twitterBootstrap4 = callPackage ../development/web/twitter-bootstrap {};
-  twitterBootstrap = twitterBootstrap3;
+  twitterBootstrap = callPackage ../development/web/twitter-bootstrap {};
 
   txr = callPackage ../tools/misc/txr { stdenv = clangStdenv; };