diff --git a/src/OrchardCore.Themes/TheAdmin/package-lock.json b/src/OrchardCore.Themes/TheAdmin/package-lock.json
index ed6bd917663..ef203b31d2f 100644
--- a/src/OrchardCore.Themes/TheAdmin/package-lock.json
+++ b/src/OrchardCore.Themes/TheAdmin/package-lock.json
@@ -8,17 +8,34 @@
       "name": "orchardcore.theadmin",
       "version": "1.0.0",
       "dependencies": {
-        "bootstrap": "4.6.0",
+        "bootstrap": "5.1.0",
         "bootstrap-select": "1.13.18",
         "bootstrap-slider": "11.0.2",
         "material-icons": "0.7.2",
         "popper.js": "1.16.1"
       }
     },
+    "node_modules/@popperjs/core": {
+      "version": "2.9.3",
+      "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.9.3.tgz",
+      "integrity": "sha512-xDu17cEfh7Kid/d95kB6tZsLOmSWKCZKtprnhVepjsSaCij+lM3mItSJDuuHDMbCWTh8Ejmebwb+KONcCJ0eXQ==",
+      "peer": true,
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/popperjs"
+      }
+    },
     "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": "5.1.0",
+      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-5.1.0.tgz",
+      "integrity": "sha512-bs74WNI9BgBo3cEovmdMHikSKoXnDgA6VQjJ7TyTotU6L7d41ZyCEEelPwkYEzsG/Zjv3ie9IE3EMAje0W9Xew==",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/bootstrap"
+      },
+      "peerDependencies": {
+        "@popperjs/core": "^2.9.3"
+      }
     },
     "node_modules/bootstrap-select": {
       "version": "1.13.18",
@@ -42,10 +59,17 @@
     }
   },
   "dependencies": {
+    "@popperjs/core": {
+      "version": "2.9.3",
+      "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.9.3.tgz",
+      "integrity": "sha512-xDu17cEfh7Kid/d95kB6tZsLOmSWKCZKtprnhVepjsSaCij+lM3mItSJDuuHDMbCWTh8Ejmebwb+KONcCJ0eXQ==",
+      "peer": 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": "5.1.0",
+      "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-5.1.0.tgz",
+      "integrity": "sha512-bs74WNI9BgBo3cEovmdMHikSKoXnDgA6VQjJ7TyTotU6L7d41ZyCEEelPwkYEzsG/Zjv3ie9IE3EMAje0W9Xew==",
+      "requires": {}
     },
     "bootstrap-select": {
       "version": "1.13.18",
diff --git a/src/OrchardCore.Themes/TheAdmin/package.json b/src/OrchardCore.Themes/TheAdmin/package.json
index 164a3037489..52abbbfb631 100644
--- a/src/OrchardCore.Themes/TheAdmin/package.json
+++ b/src/OrchardCore.Themes/TheAdmin/package.json
@@ -2,7 +2,7 @@
   "name": "orchardcore.theadmin",
   "version": "1.0.0",
   "dependencies": {
-    "bootstrap": "4.6.0",
+    "bootstrap": "5.1.0",
     "bootstrap-select": "1.13.18",
     "bootstrap-slider": "11.0.2",
     "material-icons": "0.7.2",