diff --git a/package-lock.json b/package-lock.json
index 4ab2988..f8432f2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2273,18 +2273,6 @@
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       "dev": true
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-      "resolved": "https://registry.npmjs.org/clipboard/-/clipboard-2.0.4.tgz",
-      "integrity": "sha512-Vw26VSLRpJfBofiVaFb/I8PVfdI1OxKcYShe6fm0sP/DtmiWQNCjhM/okTvdCo0G+lMMm1rMYbk4IK4x1X+kgQ==",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "good-listener": "^1.2.2",
-        "select": "^1.1.2",
-        "tiny-emitter": "^2.0.0"
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       "resolved": "https://registry.npmjs.org/clone/-/clone-2.1.2.tgz",
@@ -2785,13 +2773,6 @@
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       "dev": true
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-    "delegate": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/delegate/-/delegate-3.2.0.tgz",
-      "integrity": "sha512-IofjkYBZaZivn0V8nnsMJGBr4jVLxHDheKSW88PyxS5QC4Vo9ZbZVvhzlSxY87fVq3STR6r+4cGepyHkcWOQSw==",
-      "dev": true,
-      "optional": true
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       "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
@@ -4413,16 +4394,6 @@
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-    "good-listener": {
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-      "resolved": "https://registry.npmjs.org/good-listener/-/good-listener-1.2.2.tgz",
-      "integrity": "sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=",
-      "dev": true,
-      "optional": true,
-      "requires": {
-        "delegate": "^3.1.2"
-      }
-    },
     "graceful-fs": {
       "version": "4.2.2",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.2.tgz",
@@ -7193,13 +7164,10 @@
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     "prismjs": {
-      "version": "1.17.1",
-      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.17.1.tgz",
-      "integrity": "sha512-PrEDJAFdUGbOP6xK/UsfkC5ghJsPJviKgnQOoxaDbBjwc8op68Quupwt1DeAFoG8GImPhiKXAvvsH7wDSLsu1Q==",
-      "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
     },
     "private": {
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@@ -7883,13 +7851,6 @@
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       "dev": true
     },
-    "select": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/select/-/select-1.1.2.tgz",
-      "integrity": "sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=",
-      "dev": true,
-      "optional": true
-    },
     "semver": {
       "version": "5.7.1",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
@@ -8734,13 +8695,6 @@
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       }
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-    "tiny-emitter": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.1.0.tgz",
-      "integrity": "sha512-NB6Dk1A9xgQPMoGqC5CVXn123gWyte215ONT5Pp5a0yt4nlEoO1ZWeCwpncaekPHXO60i47ihFnZPiRPjRMq4Q==",
-      "dev": true,
-      "optional": true
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     "tiny-inflate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/tiny-inflate/-/tiny-inflate-1.0.2.tgz",
diff --git a/package.json b/package.json
index a89df9b..4140274 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "magicbook-codesplit": "^0.1.6",
     "magicbook-webpack": "0.0.4",
     "p5": "^0.5.9",
-    "prismjs": "^1.5.1",
+    "prismjs": "^1.27.0",
     "react": "^15.3.2",
     "react-dom": "^15.3.2",
     "terser-webpack-plugin": "^2.3.5",