diff --git a/lib/EnlighterJS-2.12.0/package.json b/lib/EnlighterJS-2.12.0/package.json
index 0c88375..5c3d6ee 100644
--- a/lib/EnlighterJS-2.12.0/package.json
+++ b/lib/EnlighterJS-2.12.0/package.json
@@ -36,7 +36,7 @@
   "license": "MIT",
   "bugs": "https://github.com/AndiDittrich/EnlighterJS/issues",
   "devDependencies": {
-    "bootstrap": "~3.3.4",
+    "bootstrap": "~3.4.1",
     "less": "~2.5.1",
     "less-plugin-autoprefix": "~1.4.2",
     "uglify-js": "~2.4.23",
diff --git a/lib/EnlighterJS-2.12.0/yarn.lock b/lib/EnlighterJS-2.12.0/yarn.lock
index 0bd2cb0..fb20327 100644
--- a/lib/EnlighterJS-2.12.0/yarn.lock
+++ b/lib/EnlighterJS-2.12.0/yarn.lock
@@ -70,9 +70,9 @@ boom@5.x.x:
   dependencies:
     hoek "4.x.x"
 
-bootstrap@~3.3.4:
-  version "3.3.7"
-  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-3.3.7.tgz#5a389394549f23330875a3b150656574f8a9eb71"
+bootstrap@~3.4.1:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-3.4.1.tgz#c3a347d419e289ad11f4033e3c4132b87c081d72"
 
 browserslist@~0.4.0:
   version "0.4.0"