diff --git a/pkgs/development/web/twitter-bootstrap/default.nix b/pkgs/development/web/twitter-bootstrap/default.nix
index 7537c2795d2..71cda3d3d9f 100644
--- a/pkgs/development/web/twitter-bootstrap/default.nix
+++ b/pkgs/development/web/twitter-bootstrap/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "bootstrap-${version}";
-  version = "3.3.7";
+  version = "3.4.1";
 
   src = fetchurl {
     url = "https://github.com/twbs/bootstrap/releases/download/v${version}/bootstrap-${version}-dist.zip";
-    sha256 = "0yqvg72knl7a0rlszbpk7xf7f0cs3aqf9xbl42ff41yh5pzsi67l";
+    sha256 = "0bnrxyryl4kyq250k4n2lxgkddfs9lxhqd6gq8x3kg9wfz7r75yl";
   };
 
   buildInputs = [ unzip ];