diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 0c136c6..f1f9a7a
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "circleci-demo-ruby-rails",
   "private": true,
   "dependencies": {
-    "bootstrap": "~>4.1.2"
+    "bootstrap": "~>4.3.1"
   },
   "version": "1.0.0",
   "repository": "git@github.com:CircleCI-Public/circleci-demo-ruby-rails.git",
diff --git a/yarn.lock b/yarn.lock
old mode 100755
new mode 100644
index 79acf57..64a02d0
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-bootstrap@~>4.1.2:
-  version "4.1.3"
-  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-4.1.3.tgz#0eb371af2c8448e8c210411d0cb824a6409a12be"
-  integrity sha512-rDFIzgXcof0jDyjNosjv4Sno77X4KuPeFxG2XZZv1/Kc8DRVGVADdoQyyOVDwPqL36DDmtCQbrpMCqvpPLJQ0w==
+bootstrap@~>4.3.1:
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-4.3.1.tgz#280ca8f610504d99d7b6b4bfc4b68cec601704ac"
+  integrity sha512-rXqOmH1VilAt2DyPzluTi2blhk17bO7ef+zLLPlWvG494pDxcM234pJ8wTc/6R40UWizAIIMgxjvxZg5kmsbag==