diff --git a/package-lock.json b/package-lock.json
index 4788cf76..8e9745e8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1769,11 +1769,12 @@
       }
     },
     "@material-ui/core": {
-      "version": "4.9.10",
-      "resolved": "https://registry.npmjs.org/@material-ui/core/-/core-4.9.10.tgz",
-      "integrity": "sha512-CQuZU9Y10RkwSdxjn785kw2EPcXhv5GKauuVQufR9LlD37kjfn21Im1yvr6wsUzn81oLhEvVPz727UWC0gbqxg==",
+      "version": "4.9.11",
+      "resolved": "https://registry.npmjs.org/@material-ui/core/-/core-4.9.11.tgz",
+      "integrity": "sha512-S2Ha9GpTxzl29XMeMc8dQX2pj97yApNzuhe/23If53fMdg5Fmd3SgbE1bMbyXeKhxwtXZjOFxd0vU+W/sez8Ew==",
       "requires": {
         "@babel/runtime": "^7.4.4",
+        "@material-ui/react-transition-group": "^4.2.0",
         "@material-ui/styles": "^4.9.10",
         "@material-ui/system": "^4.9.10",
         "@material-ui/types": "^5.0.1",
@@ -1795,6 +1796,17 @@
         "@babel/runtime": "^7.4.4"
       }
     },
+    "@material-ui/react-transition-group": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/@material-ui/react-transition-group/-/react-transition-group-4.2.0.tgz",
+      "integrity": "sha512-4zapZ0gW1ZTws5aH9OGy3IMvtTV/olc7YrVSkM1WFu1FsrEhL+qarEniRjx7LjHt0gukFqoINfElI8v2boVMQA==",
+      "requires": {
+        "@babel/runtime": "^7.4.5",
+        "dom-helpers": "^3.4.0",
+        "loose-envify": "^1.4.0",
+        "prop-types": "^15.6.2"
+      }
+    },
     "@material-ui/styles": {
       "version": "4.9.10",
       "resolved": "https://registry.npmjs.org/@material-ui/styles/-/styles-4.9.10.tgz",
@@ -6929,12 +6941,11 @@
       }
     },
     "dom-helpers": {
-      "version": "5.1.4",
-      "resolved": "https://registry.npmjs.org/dom-helpers/-/dom-helpers-5.1.4.tgz",
-      "integrity": "sha512-TjMyeVUvNEnOnhzs6uAn9Ya47GmMo3qq7m+Lr/3ON0Rs5kHvb8I+SQYjLUSYn7qhEm0QjW0yrBkvz9yOrwwz1A==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/dom-helpers/-/dom-helpers-3.4.0.tgz",
+      "integrity": "sha512-LnuPJ+dwqKDIyotW1VzmOZ5TONUN7CwkCR5hrgawTUbkBGYdeoNLZo6nNfGkCrjtE1nXXaj7iMMpDa8/d9WoIA==",
       "requires": {
-        "@babel/runtime": "^7.8.7",
-        "csstype": "^2.6.7"
+        "@babel/runtime": "^7.1.2"
       }
     },
     "dom-serializer": {
@@ -18619,6 +18630,17 @@
         "dom-helpers": "^5.0.1",
         "loose-envify": "^1.4.0",
         "prop-types": "^15.6.2"
+      },
+      "dependencies": {
+        "dom-helpers": {
+          "version": "5.1.4",
+          "resolved": "https://registry.npmjs.org/dom-helpers/-/dom-helpers-5.1.4.tgz",
+          "integrity": "sha512-TjMyeVUvNEnOnhzs6uAn9Ya47GmMo3qq7m+Lr/3ON0Rs5kHvb8I+SQYjLUSYn7qhEm0QjW0yrBkvz9yOrwwz1A==",
+          "requires": {
+            "@babel/runtime": "^7.8.7",
+            "csstype": "^2.6.7"
+          }
+        }
       }
     },
     "react-twitter-widgets": {
diff --git a/package.json b/package.json
index 2aa4a600..626385ae 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "version": "1.1.0",
   "author": "Ruben Harutyunyan <vagr9k@gmail.com>",
   "dependencies": {
-    "@material-ui/core": "4.9.10",
+    "@material-ui/core": "4.9.11",
     "@material-ui/icons": "4.9.1",
     "@mdx-js/mdx": "1.5.8",
     "@mdx-js/react": "1.5.8",