diff --git a/package-lock.json b/package-lock.json
index 64682c4..11ee2a9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -291,9 +291,9 @@
             "dev": true
         },
         "bootstrap": {
-            "version": "4.1.1",
-            "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.1.1.tgz",
-            "integrity": "sha512-SpiDSOcbg4J/PjVSt4ny5eY6j74VbVSjROY4Fb/WIUXBV9cnb5luyR4KnPvNoXuGnBK1T+nJIWqRsvU3yP8Mcg=="
+            "version": "4.3.1",
+            "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.3.1.tgz",
+            "integrity": "sha512-rXqOmH1VilAt2DyPzluTi2blhk17bO7ef+zLLPlWvG494pDxcM234pJ8wTc/6R40UWizAIIMgxjvxZg5kmsbag=="
         },
         "brace-expansion": {
             "version": "1.1.8",
@@ -1422,7 +1422,8 @@
                 "ansi-regex": {
                     "version": "2.1.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "aproba": {
                     "version": "1.2.0",
@@ -1837,7 +1838,8 @@
                 "safe-buffer": {
                     "version": "5.1.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "safer-buffer": {
                     "version": "2.1.2",
@@ -1893,6 +1895,7 @@
                     "version": "3.0.1",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "ansi-regex": "^2.0.0"
                     }
@@ -1936,12 +1939,14 @@
                 "wrappy": {
                     "version": "1.0.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "yallist": {
                     "version": "3.0.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 }
             }
         },
diff --git a/package.json b/package.json
index c010712..4fcf1b4 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
         "url": "https://github.com/BlackrockDigital/startbootstrap-modern-business.git"
     },
     "dependencies": {
-        "bootstrap": "4.1.1",
+        "bootstrap": "4.3.1",
         "font-awesome": "^4.7.0",
         "jquery": "3.3.1"
     },