diff --git a/package.json b/package.json
index 8a876c7..9d34271 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   },
   "homepage": "https://github.com/Jamesking56/Jamesking56.uk#readme",
   "dependencies": {
-    "bootstrap": "^3.4.1",
+    "bootstrap": "^4.0.0",
     "easy-pie-chart": "^2.1.7",
     "fittext.js": "^1.2.0",
     "flexslider": "^2.6.3",
diff --git a/yarn.lock b/yarn.lock
index adba78f..3f52e86 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -130,10 +130,10 @@ beeper@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/beeper/-/beeper-1.1.1.tgz#e6d5ea8c5dad001304a70b22638447f69cb2f809"
 
-bootstrap@^3.4.1:
-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-3.4.1.tgz#c3a347d419e289ad11f4033e3c4132b87c081d72"
-  integrity sha512-yN5oZVmRCwe5aKwzRj6736nSmKDX7pLYwsXiCj/EYmo16hODaBiT4En5btW/jhBF/seV+XMx3aYwukYC3A49DA==
+bootstrap@^4.0.0:
+  version "4.3.1"
+  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-4.3.1.tgz#280ca8f610504d99d7b6b4bfc4b68cec601704ac"
+  integrity sha512-rXqOmH1VilAt2DyPzluTi2blhk17bO7ef+zLLPlWvG494pDxcM234pJ8wTc/6R40UWizAIIMgxjvxZg5kmsbag==
 
 brace-expansion@^1.0.0, brace-expansion@^1.1.7:
   version "1.1.11"