diff --git a/kotoed-js/package.json b/kotoed-js/package.json
index 8e4e3521..9e32494d 100644
--- a/kotoed-js/package.json
+++ b/kotoed-js/package.json
@@ -67,7 +67,7 @@
     "babel-preset-es2015": "~6.24.1",
     "babel-preset-es2016": "~6.24.1",
     "babel-preset-es2017": "~6.24.1",
-    "bootstrap": "^3.3.7",
+    "bootstrap": "^3.4.1",
     "bootstrap-social": "~5.1.1",
     "codemirror": "~5.49.0",
     "diff-match-patch": "^1.0.0",
diff --git a/kotoed-js/yarn.lock b/kotoed-js/yarn.lock
index 0c66ad41..9a9148a6 100644
--- a/kotoed-js/yarn.lock
+++ b/kotoed-js/yarn.lock
@@ -1266,9 +1266,9 @@ bootstrap-social@~5.1.1:
     bootstrap "~3"
     font-awesome "~4.7"
 
-bootstrap@^3.3.7, bootstrap@~3:
-  version "3.3.7"
-  resolved "https://registry.npmjs.org/bootstrap/-/bootstrap-3.3.7.tgz"
+bootstrap@^3.4.1, bootstrap@~3:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-3.4.1.tgz#c3a347d419e289ad11f4033e3c4132b87c081d72"
 
 bowser@^1.0.0:
   version "1.9.4"