diff --git a/package-lock.json b/package-lock.json
index c0512e765a..737d21cb26 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16868,7 +16868,17 @@
             "set-blocking": "^2.0.0",
             "string-width": "^3.0.0",
             "which-module": "^2.0.0",
-            "y18n": "^4.0.0"
+            "y18n": "^4.0.0",
+            "yargs-parser": "^13.1.1"
+          }
+        },
+        "yargs-parser": {
+          "version": "13.1.1",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
+          "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
+          "requires": {
+            "camelcase": "^5.0.0",
+            "decamelize": "^1.2.0"
           }
         }
       }
@@ -17513,12 +17523,6 @@
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           }
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-        "camelcase": {
-          "version": "5.3.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
-          "dev": true
-        },
         "chokidar": {
           "version": "3.3.0",
           "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.3.0.tgz",
@@ -17768,16 +17772,6 @@
             "y18n": "^4.0.0",
             "yargs-parser": "^13.1.2"
           }
-        },
-        "yargs-parser": {
-          "version": "13.1.2",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
-          "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
-          "dev": true,
-          "requires": {
-            "camelcase": "^5.0.0",
-            "decamelize": "^1.2.0"
-          }
         }
       }
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@@ -22116,12 +22110,6 @@
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           "dev": true
         },
-        "camelcase": {
-          "version": "5.3.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
-          "dev": true
-        },
         "emoji-regex": {
           "version": "7.0.3",
           "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
@@ -22222,16 +22210,6 @@
             "y18n": "^4.0.0",
             "yargs-parser": "^13.1.2"
           }
-        },
-        "yargs-parser": {
-          "version": "13.1.2",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
-          "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
-          "dev": true,
-          "requires": {
-            "camelcase": "^5.0.0",
-            "decamelize": "^1.2.0"
-          }
         }
       }
     },
@@ -22650,6 +22628,15 @@
             "y18n": "^4.0.0",
             "yargs-parser": "^15.0.1"
           }
+        },
+        "yargs-parser": {
+          "version": "15.0.1",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-15.0.1.tgz",
+          "integrity": "sha512-0OAMV2mAZQrs3FkNpDQcBk1x5HXb8X4twADss4S0Iuk+2dGnLOE/fRHrsYm542GduMveyA77OF4wrNJuanRCWw==",
+          "requires": {
+            "camelcase": "^5.0.0",
+            "decamelize": "^1.2.0"
+          }
         }
       }
     },
@@ -25506,9 +25493,9 @@
       "integrity": "sha1-9PrTM0R7wLB9TcjpIJ2POaisd+g="
     },
     "tinymce": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/tinymce/-/tinymce-5.2.2.tgz",
-      "integrity": "sha512-G1KZOxHIrokeP/rhJuvwctmeAuHDAeH8AI1ubnVcdMZtmC6mUh3SfESqFJrFWoiF143OUMC61GkVhi920pIP0A=="
+      "version": "5.4.2",
+      "resolved": "https://registry.npmjs.org/tinymce/-/tinymce-5.4.2.tgz",
+      "integrity": "sha512-MRquvKxI28AiSn2ikypgJFD7LH4mQZLtgFn+yROF1bTFp92MdlLeGBrI38/O5mej3cvz27g3Pgr+3MShepbJ+w=="
     },
     "tmp": {
       "version": "0.0.33",
@@ -27509,12 +27496,6 @@
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           "dev": true
         },
-        "camelcase": {
-          "version": "5.3.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
-          "dev": true
-        },
         "cliui": {
           "version": "5.0.0",
           "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
@@ -27617,23 +27598,14 @@
             "string-width": "^3.0.0",
             "strip-ansi": "^5.0.0"
           }
-        },
-        "yargs-parser": {
-          "version": "13.1.2",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
-          "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
-          "dev": true,
-          "requires": {
-            "camelcase": "^5.0.0",
-            "decamelize": "^1.2.0"
-          }
         }
       }
     },
     "yargs-parser": {
-      "version": "15.0.1",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-15.0.1.tgz",
-      "integrity": "sha512-0OAMV2mAZQrs3FkNpDQcBk1x5HXb8X4twADss4S0Iuk+2dGnLOE/fRHrsYm542GduMveyA77OF4wrNJuanRCWw==",
+      "version": "13.1.2",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
+      "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
+      "dev": true,
       "requires": {
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
@@ -27642,7 +27614,8 @@
         "camelcase": {
           "version": "5.3.1",
           "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg=="
+          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+          "dev": true
         }
       }
     },
@@ -27663,12 +27636,6 @@
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           "dev": true
         },
-        "camelcase": {
-          "version": "5.3.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
-          "dev": true
-        },
         "cliui": {
           "version": "5.0.0",
           "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
@@ -27789,16 +27756,6 @@
             "y18n": "^4.0.0",
             "yargs-parser": "^13.1.2"
           }
-        },
-        "yargs-parser": {
-          "version": "13.1.2",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
-          "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
-          "dev": true,
-          "requires": {
-            "camelcase": "^5.0.0",
-            "decamelize": "^1.2.0"
-          }
         }
       }
     }
diff --git a/package.json b/package.json
index 46dd5e7ff2..a25bb9debf 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,8 @@
     "test": "env NODE_PATH=$NODE_PATH:./assets/js/src mocha --require tests/javascript/babel_register.js tests/javascript/**/*.spec.js",
     "check-types": "tsc --noEmit",
     "storybook": "start-storybook -s ./ -p 8083",
-    "build-storybook": "build-storybook"
+    "build-storybook": "build-storybook",
+    "postinstall": "./tasks/npm_post_install.sh"
   },
   "dependencies": {
     "@babel/runtime": "^7.10.2",
@@ -83,7 +84,7 @@
     "setimmediate": "^1.0.5",
     "slugify": "^1.4.0",
     "spectrum-colorpicker": "^1.6.2",
-    "tinymce": "^5.2.2",
+    "tinymce": "^5.4.2",
     "underscore": "1.8.3",
     "velocity-animate": "^1.5.2"
   },