diff --git a/package-lock.json b/package-lock.json
index 7e7513a4..5c4cdf45 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "LGPL-2.1-only",
       "dependencies": {
         "@neos21/bootstrap3-glyphicons": "^1.0.7",
-        "bootstrap": "^4.6.0",
+        "bootstrap": "^5.1.3",
         "highlight.js": "^11.3.1",
         "jquery": "^3.6.0",
         "popper.js": "^1.16.1"
@@ -319,6 +319,16 @@
         "node": ">= 8"
       }
     },
+    "node_modules/@popperjs/core": {
+      "version": "2.11.2",
+      "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.11.2.tgz",
+      "integrity": "sha512-92FRmppjjqz29VMJ2dn+xdyXZBrMlE42AV6Kq6BwjWV7CNUW1hs2FtxSNLQE+gJhaZ6AAmYuO9y8dshhcBl7vA==",
+      "peer": true,
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/popperjs"
+      }
+    },
     "node_modules/@trysound/sax": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/@trysound/sax/-/sax-0.2.0.tgz",
@@ -1191,16 +1201,15 @@
       "dev": true
     },
     "node_modules/bootstrap": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.6.0.tgz",
-      "integrity": "sha512-Io55IuQY3kydzHtbGvQya3H+KorS/M9rSNyfCGCg9WZ4pyT/lCxIlpJgG1GXW/PswzC84Tr2fBYi+7+jFVQQBw==",
+      "version": "5.1.3",
+      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-5.1.3.tgz",
+      "integrity": "sha512-fcQztozJ8jToQWXxVuEyXWW+dSo8AiXWKwiSSrKWsRB/Qt+Ewwza+JWoLKiTuQLaEPhdNAJ7+Dosc9DOIqNy7Q==",
       "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/bootstrap"
       },
       "peerDependencies": {
-        "jquery": "1.9.1 - 3",
-        "popper.js": "^1.16.1"
+        "@popperjs/core": "^2.10.2"
       }
     },
     "node_modules/brace-expansion": {
@@ -15147,6 +15156,12 @@
         "fastq": "^1.6.0"
       }
     },
+    "@popperjs/core": {
+      "version": "2.11.2",
+      "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.11.2.tgz",
+      "integrity": "sha512-92FRmppjjqz29VMJ2dn+xdyXZBrMlE42AV6Kq6BwjWV7CNUW1hs2FtxSNLQE+gJhaZ6AAmYuO9y8dshhcBl7vA==",
+      "peer": true
+    },
     "@trysound/sax": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/@trysound/sax/-/sax-0.2.0.tgz",
@@ -15807,9 +15822,9 @@
       "dev": true
     },
     "bootstrap": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.6.0.tgz",
-      "integrity": "sha512-Io55IuQY3kydzHtbGvQya3H+KorS/M9rSNyfCGCg9WZ4pyT/lCxIlpJgG1GXW/PswzC84Tr2fBYi+7+jFVQQBw==",
+      "version": "5.1.3",
+      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-5.1.3.tgz",
+      "integrity": "sha512-fcQztozJ8jToQWXxVuEyXWW+dSo8AiXWKwiSSrKWsRB/Qt+Ewwza+JWoLKiTuQLaEPhdNAJ7+Dosc9DOIqNy7Q==",
       "requires": {}
     },
     "brace-expansion": {
diff --git a/package.json b/package.json
index 26fc9da2..e4b5685e 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
   },
   "dependencies": {
     "@neos21/bootstrap3-glyphicons": "^1.0.7",
-    "bootstrap": "^4.6.0",
+    "bootstrap": "^5.1.3",
     "highlight.js": "^11.3.1",
     "jquery": "^3.6.0",
     "popper.js": "^1.16.1"