diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 2ecaeaf..ab0c7a4
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "gulp": "gulp"
   },
   "devDependencies": {
-    "bootstrap": "^3.3.7",
+    "bootstrap": "^3.4.1",
     "browser-sync": "^2.13.0",
     "font-awesome": "^4.6.3",
     "gulp": "^3.9.1",
diff --git a/yarn.lock b/yarn.lock
index f70c437..87a7f90 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -263,10 +263,10 @@ boom@2.x.x:
   dependencies:
     hoek "2.x.x"
 
-bootstrap@^3.3.7:
-  version "3.3.7"
-  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-3.3.7.tgz#5a389394549f23330875a3b150656574f8a9eb71"
-  integrity sha1-WjiTlFSfIzMIdaOxUGVldPip63E=
+bootstrap@^3.4.1:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-3.4.1.tgz#c3a347d419e289ad11f4033e3c4132b87c081d72"
+  integrity sha512-yN5oZVmRCwe5aKwzRj6736nSmKDX7pLYwsXiCj/EYmo16hODaBiT4En5btW/jhBF/seV+XMx3aYwukYC3A49DA==
 
 brace-expansion@^1.0.0:
   version "1.1.8"