diff --git a/package-lock.json b/package-lock.json
index 383fd6d..3f300e3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2666,18 +2666,6 @@
         }
       }
     },
-    "clipboard": {
-      "version": "2.0.6",
-      "resolved": "https://r.cnpmjs.org/clipboard/download/clipboard-2.0.6.tgz",
-      "integrity": "sha1-UpISlu7A/fd+rRdJQhshyWhkc3Y=",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "good-listener": "^1.2.2",
-        "select": "^1.1.2",
-        "tiny-emitter": "^2.0.0"
-      }
-    },
     "cliui": {
       "version": "5.0.0",
       "resolved": "https://r.cnpmjs.org/cliui/download/cliui-5.0.0.tgz",
@@ -3532,13 +3520,6 @@
       "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk=",
       "dev": true
     },
-    "delegate": {
-      "version": "3.2.0",
-      "resolved": "https://r.cnpmjs.org/delegate/download/delegate-3.2.0.tgz",
-      "integrity": "sha1-tmtxwxWFIuirV0T3INjKDCr1kWY=",
-      "dev": true,
-      "optional": true
-    },
     "depd": {
       "version": "1.1.2",
       "resolved": "https://r.cnpmjs.org/depd/download/depd-1.1.2.tgz",
@@ -4619,16 +4600,6 @@
         "slash": "^2.0.0"
       }
     },
-    "good-listener": {
-      "version": "1.2.2",
-      "resolved": "https://r.cnpmjs.org/good-listener/download/good-listener-1.2.2.tgz",
-      "integrity": "sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "delegate": "^3.1.2"
-      }
-    },
     "graceful-fs": {
       "version": "4.2.3",
       "resolved": "https://r.cnpmjs.org/graceful-fs/download/graceful-fs-4.2.3.tgz",
@@ -7463,13 +7434,10 @@
       "dev": true
     },
     "prismjs": {
-      "version": "1.21.0",
-      "resolved": "https://r.cnpmjs.org/prismjs/download/prismjs-1.21.0.tgz",
-      "integrity": "sha1-NsCG7Da0UxnsQhjuFkwRD5/AFaM=",
-      "dev": true,
-      "requires": {
-        "clipboard": "^2.0.0"
-      }
+      "version": "1.27.0",
+      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.27.0.tgz",
+      "integrity": "sha512-t13BGPUlFDR7wRB5kQDG4jjl7XeuH6jbJGt11JHPL96qwsEHNX2+68tFXqc1/k+/jALsbSWJKUOT/hcYAZ5LkA==",
+      "dev": true
     },
     "process": {
       "version": "0.11.10",
@@ -8066,13 +8034,6 @@
         }
       }
     },
-    "select": {
-      "version": "1.1.2",
-      "resolved": "https://r.cnpmjs.org/select/download/select-1.1.2.tgz",
-      "integrity": "sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=",
-      "dev": true,
-      "optional": true
-    },
     "select-hose": {
       "version": "2.0.0",
       "resolved": "https://r.cnpmjs.org/select-hose/download/select-hose-2.0.0.tgz",
@@ -9069,13 +9030,6 @@
       "integrity": "sha1-QFQRqOfmM5/mTbmiNN4R3DHgK9Q=",
       "dev": true
     },
-    "tiny-emitter": {
-      "version": "2.1.0",
-      "resolved": "https://r.cnpmjs.org/tiny-emitter/download/tiny-emitter-2.1.0.tgz",
-      "integrity": "sha1-HRpW7fxRxD6GPLtTgqcjMONVVCM=",
-      "dev": true,
-      "optional": true
-    },
     "to-arraybuffer": {
       "version": "1.0.1",
       "resolved": "https://r.cnpmjs.org/to-arraybuffer/download/to-arraybuffer-1.0.1.tgz",