diff --git a/package.json b/package.json
index c131da3..62875b6 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "private": true,
   "devDependencies": {
     "anchor-js": "^4.1.1",
-    "bootstrap": "4.0.0",
+    "bootstrap": "4.3.1",
     "browserify": "^13.0.0",
     "connect-livereload": "~0.6.0",
     "grunt": "~1.0.1",
diff --git a/yarn.lock b/yarn.lock
index 2800c6a..306bec6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -201,9 +201,9 @@ body-parser@~1.14.0:
     raw-body "~2.1.5"
     type-is "~1.6.10"
 
-bootstrap@4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-4.0.0.tgz#ceb03842c145fcc1b9b4e15da2a05656ba68469a"
+bootstrap@4.3.1:
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-4.3.1.tgz#280ca8f610504d99d7b6b4bfc4b68cec601704ac"
 
 brace-expansion@^1.1.7:
   version "1.1.11"