diff --git a/bbb-learning-dashboard/package-lock.json b/bbb-learning-dashboard/package-lock.json
index cec5f43a95..34c60285f7 100644
--- a/bbb-learning-dashboard/package-lock.json
+++ b/bbb-learning-dashboard/package-lock.json
@@ -10,6 +10,7 @@
       "dependencies": {
         "@emotion/react": "^11.10.5",
         "@emotion/styled": "^11.10.5",
+        "@mui/base": "^5.0.0-alpha.105",
         "@mui/material": "^5.10.13",
         "@mui/x-data-grid": "^5.17.10",
         "react": "^17.0.2",
@@ -2616,6 +2617,44 @@
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
       }
     },
+    "node_modules/@floating-ui/core": {
+      "version": "1.6.7",
+      "resolved": "https://registry.npmjs.org/@floating-ui/core/-/core-1.6.7.tgz",
+      "integrity": "sha512-yDzVT/Lm101nQ5TCVeK65LtdN7Tj4Qpr9RTXJ2vPFLqtLxwOrpoxAHAJI8J3yYWUc40J0BDBheaitK5SJmno2g==",
+      "license": "MIT",
+      "dependencies": {
+        "@floating-ui/utils": "^0.2.7"
+      }
+    },
+    "node_modules/@floating-ui/dom": {
+      "version": "1.6.10",
+      "resolved": "https://registry.npmjs.org/@floating-ui/dom/-/dom-1.6.10.tgz",
+      "integrity": "sha512-fskgCFv8J8OamCmyun8MfjB1Olfn+uZKjOKZ0vhYF3gRmEUXcGOjxWL8bBr7i4kIuPZ2KD2S3EUIOxnjC8kl2A==",
+      "license": "MIT",
+      "dependencies": {
+        "@floating-ui/core": "^1.6.0",
+        "@floating-ui/utils": "^0.2.7"
+      }
+    },
+    "node_modules/@floating-ui/react-dom": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@floating-ui/react-dom/-/react-dom-2.1.1.tgz",
+      "integrity": "sha512-4h84MJt3CHrtG18mGsXuLCHMrug49d7DFkU0RMIyshRveBeyV2hmV/pDaF2Uxtu8kgq5r46llp5E5FQiR0K2Yg==",
+      "license": "MIT",
+      "dependencies": {
+        "@floating-ui/dom": "^1.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=16.8.0",
+        "react-dom": ">=16.8.0"
+      }
+    },
+    "node_modules/@floating-ui/utils": {
+      "version": "0.2.7",
+      "resolved": "https://registry.npmjs.org/@floating-ui/utils/-/utils-0.2.7.tgz",
+      "integrity": "sha512-X8R8Oj771YRl/w+c1HqAC1szL8zWQRwFvgDwT129k9ACdBoud/+/rX9V0qiMl6LWUdP9voC2nDVZYPMQQsb6eA==",
+      "license": "MIT"
+    },
     "node_modules/@formatjs/ecma402-abstract": {
       "version": "1.11.4",
       "resolved": "https://registry.npmjs.org/@formatjs/ecma402-abstract/-/ecma402-abstract-1.11.4.tgz",
@@ -3577,6 +3616,38 @@
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       "license": "MIT"
     },
+    "node_modules/@mui/base": {
+      "version": "5.0.0-beta.40",
+      "resolved": "https://registry.npmjs.org/@mui/base/-/base-5.0.0-beta.40.tgz",
+      "integrity": "sha512-I/lGHztkCzvwlXpjD2+SNmvNQvB4227xBXhISPjEaJUXGImOQ9f3D2Yj/T3KasSI/h0MLWy74X0J6clhPmsRbQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@babel/runtime": "^7.23.9",
+        "@floating-ui/react-dom": "^2.0.8",
+        "@mui/types": "^7.2.14",
+        "@mui/utils": "^5.15.14",
+        "@popperjs/core": "^2.11.8",
+        "clsx": "^2.1.0",
+        "prop-types": "^15.8.1"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/mui-org"
+      },
+      "peerDependencies": {
+        "@types/react": "^17.0.0 || ^18.0.0",
+        "react": "^17.0.0 || ^18.0.0",
+        "react-dom": "^17.0.0 || ^18.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@mui/core-downloads-tracker": {
       "version": "5.16.7",
       "resolved": "https://registry.npmjs.org/@mui/core-downloads-tracker/-/core-downloads-tracker-5.16.7.tgz",
@@ -7581,9 +7652,9 @@
       }
     },
     "node_modules/electron-to-chromium": {
-      "version": "1.5.14",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.14.tgz",
-      "integrity": "sha512-bEfPECb3fJ15eaDnu9LEJ2vPGD6W1vt7vZleSVyFhYuMIKm3vz/g9lt7IvEzgdwj58RjbPKUF2rXTCN/UW47tQ==",
+      "version": "1.5.15",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.15.tgz",
+      "integrity": "sha512-Z4rIDoImwEJW+YYKnPul4DzqsWVqYetYVN3XqDmRpgV0mjz0hYTaeeh+8/9CL1bk3AHYmF4freW/NTiVoXA2gA==",
       "license": "ISC"
     },
     "node_modules/emittery": {
diff --git a/bbb-learning-dashboard/package.json b/bbb-learning-dashboard/package.json
index c58835f870..b52cba1b10 100644
--- a/bbb-learning-dashboard/package.json
+++ b/bbb-learning-dashboard/package.json
@@ -11,6 +11,7 @@
   "dependencies": {
     "@emotion/react": "^11.10.5",
     "@emotion/styled": "^11.10.5",
+    "@mui/base": "^5.0.0-alpha.105",
     "@mui/material": "^5.10.13",
     "@mui/x-data-grid": "^5.17.10",
     "react": "^17.0.2",
diff --git a/bbb-learning-dashboard/src/components/UsersTable.jsx b/bbb-learning-dashboard/src/components/UsersTable.jsx
index e98b9a8f84..38f3ea0209 100644
--- a/bbb-learning-dashboard/src/components/UsersTable.jsx
+++ b/bbb-learning-dashboard/src/components/UsersTable.jsx
@@ -350,7 +350,7 @@ class UsersTable extends React.Component {
                               title={`${percentage.toString()}%`}
                             >
                               <div
-                                aria-label=" "
+                                aria-label="Online time"
                                 className="bg-gradient-to-br from-green-100 to-green-600 transition-colors duration-900 h-1.5"
                                 style={{ width: `${percentage.toString()}%` }}
                                 role="progressbar"