diff --git a/package-lock.json b/package-lock.json
index 909e17a..84635a7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "GPL-3.0",
       "dependencies": {
         "backbone": "1.6.0",
-        "bootstrap": "^3.3.7",
+        "bootstrap": "^5.3.3",
         "bootstrap-arrow-buttons": "^1.0.4",
         "css-loader": "^6.2.0",
         "file-loader": "^6.0.0",
@@ -448,6 +448,16 @@
         "node": ">=14"
       }
     },
+    "node_modules/@popperjs/core": {
+      "version": "2.11.8",
+      "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.11.8.tgz",
+      "integrity": "sha512-P1st0aksCrn9sGZhp8GMYwBnQsbvAWsZAX44oXNNvLHGqAOcoVxmjZiohstwQ7SqKnbR47akdNi+uleWD8+g6A==",
+      "peer": true,
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/popperjs"
+      }
+    },
     "node_modules/@types/body-parser": {
       "version": "1.19.2",
       "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.19.2.tgz",
@@ -1318,11 +1328,21 @@
       }
     },
     "node_modules/bootstrap": {
-      "version": "3.4.1",
-      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-3.4.1.tgz",
-      "integrity": "sha512-yN5oZVmRCwe5aKwzRj6736nSmKDX7pLYwsXiCj/EYmo16hODaBiT4En5btW/jhBF/seV+XMx3aYwukYC3A49DA==",
-      "engines": {
-        "node": ">=6"
+      "version": "5.3.3",
+      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-5.3.3.tgz",
+      "integrity": "sha512-8HLCdWgyoMguSO9o+aH+iuZ+aht+mzW0u3HIMzVu7Srrpv7EBBxTnrFlSCskwdY1+EOFQSm7uMJhNQHkdPcmjg==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/twbs"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/bootstrap"
+        }
+      ],
+      "peerDependencies": {
+        "@popperjs/core": "^2.11.8"
       }
     },
     "node_modules/bootstrap-arrow-buttons": {
diff --git a/package.json b/package.json
index 279b984..9f8f0a1 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
   },
   "dependencies": {
     "backbone": "1.6.0",
-    "bootstrap": "^3.3.7",
+    "bootstrap": "^5.3.3",
     "bootstrap-arrow-buttons": "^1.0.4",
     "css-loader": "^6.2.0",
     "file-loader": "^6.0.0",