diff --git a/package.json b/package.json
index 33a1937..e783bb3 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "deploy": "now && now alias"
   },
   "devDependencies": {
-    "bootstrap-sass": "^3.3.7",
+    "bootstrap-sass": "^3.4.1",
     "http-server": "^0.11.1",
     "node-sass": "^4.8.3",
     "now": "^11.1.7"
diff --git a/yarn.lock b/yarn.lock
index 3f2ae35..9d4a142 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -112,9 +112,9 @@ boom@5.x.x:
   dependencies:
     hoek "4.x.x"
 
-bootstrap-sass@^3.3.7:
-  version "3.3.7"
-  resolved "https://registry.yarnpkg.com/bootstrap-sass/-/bootstrap-sass-3.3.7.tgz#6596c7ab40f6637393323ab0bc80d064fc630498"
+bootstrap-sass@^3.4.1:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/bootstrap-sass/-/bootstrap-sass-3.4.1.tgz#6843c73b1c258a0ac5cb2cc6f6f5285b664a8e9a"
 
 brace-expansion@^1.1.7:
   version "1.1.11"