diff --git a/package-lock.json b/package-lock.json
index d4e6d46e5..43ecda876 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5858,17 +5858,6 @@
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       "dev": true
     },
-    "clipboard": {
-      "version": "2.0.6",
-      "resolved": "https://registry.npmjs.org/clipboard/-/clipboard-2.0.6.tgz",
-      "integrity": "sha512-g5zbiixBRk/wyKakSwCKd7vQXDjFnAMGHoEyBogG/bw9kTD9GvdAvaoRR1ALcEzt3pVKxZR0pViekPMIS0QyGg==",
-      "optional": true,
-      "requires": {
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-        "select": "^1.1.2",
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       "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
@@ -7117,12 +7106,6 @@
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-    "delegate": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/delegate/-/delegate-3.2.0.tgz",
-      "integrity": "sha512-IofjkYBZaZivn0V8nnsMJGBr4jVLxHDheKSW88PyxS5QC4Vo9ZbZVvhzlSxY87fVq3STR6r+4cGepyHkcWOQSw==",
-      "optional": true
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       "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
@@ -9494,15 +9477,6 @@
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-    "good-listener": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/good-listener/-/good-listener-1.2.2.tgz",
-      "integrity": "sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=",
-      "optional": true,
-      "requires": {
-        "delegate": "^3.1.2"
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       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.4.tgz",
@@ -13703,17 +13677,17 @@
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       "requires": {
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-        "colors": "^1.4.0",
+        "colors": "latest",
         "connect": "^3.6.6",
-        "cors": "^2.8.5",
+        "cors": "latest",
         "event-stream": "3.3.4",
         "faye-websocket": "0.11.x",
         "http-auth": "3.1.x",
         "morgan": "^1.9.1",
-        "object-assign": "^4.1.1",
-        "opn": "^6.0.0",
-        "proxy-middleware": "^0.15.0",
-        "send": "^0.17.1",
+        "object-assign": "latest",
+        "opn": "latest",
+        "proxy-middleware": "latest",
+        "send": "latest",
         "serve-index": "^1.9.1"
       },
       "dependencies": {
@@ -16846,12 +16820,9 @@
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-      "version": "1.23.0",
-      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.23.0.tgz",
-      "integrity": "sha512-c29LVsqOaLbBHuIbsTxaKENh1N2EQBOHaWv7gkHN4dgRbxSREqDnDbtFJYdpPauS4YCplMSNCABQ6Eeor69bAA==",
-      "requires": {
-        "clipboard": "^2.0.0"
-      }
+      "version": "1.30.0",
+      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.30.0.tgz",
+      "integrity": "sha512-DEvV2ZF2r2/63V+tK8hQvrR2ZGn10srHbXviTlcv7Kpzw8jWiNTqbVgjO3IY8RxrrOUF8VPMQQFysYYYv0YZxw=="
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       "version": "0.11.10",
@@ -18029,12 +18000,6 @@
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-    "select": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/select/-/select-1.1.2.tgz",
-      "integrity": "sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=",
-      "optional": true
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     "semver": {
       "version": "5.7.1",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
@@ -19680,12 +19645,6 @@
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       "dev": true
     },
-    "tiny-emitter": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.1.0.tgz",
-      "integrity": "sha512-NB6Dk1A9xgQPMoGqC5CVXn123gWyte215ONT5Pp5a0yt4nlEoO1ZWeCwpncaekPHXO60i47ihFnZPiRPjRMq4Q==",
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       "resolved": "https://registry.npmjs.org/tinydate/-/tinydate-1.3.0.tgz",
diff --git a/package.json b/package.json
index f48bca253..a2122611c 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "marked": "^1.2.9",
     "medium-zoom": "^1.0.6",
     "opencollective-postinstall": "^2.0.2",
-    "prismjs": "^1.23.0",
+    "prismjs": "^1.30.0",
     "strip-indent": "^3.0.0",
     "tinydate": "^1.3.0",
     "tweezer.js": "^1.4.0"