diff --git a/package-lock.json b/package-lock.json
index e1189c3..1cab936 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2574,17 +2574,6 @@
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       "integrity": "sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk="
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-      "resolved": "https://registry.npmjs.org/clipboard/-/clipboard-2.0.0.tgz",
-      "integrity": "sha512-gXzHBlzEVqCk2b8Wpkil89S0WSMAX7eZho2zANX+EEEa9LMutGe9ICU+wHRzsH7cCHaCbUzj900P+AXOM0FE3A==",
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-        "select": "^1.1.2",
-        "tiny-emitter": "^2.0.0"
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       "resolved": "https://registry.npmjs.org/clipboardy/-/clipboardy-1.2.2.tgz",
@@ -3648,12 +3637,6 @@
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       "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
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-      "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",
@@ -3968,7 +3951,7 @@
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-          "resolved": "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
           "integrity": "sha1-ofeDj4MUxRbwXs78vEzP4EtO14k="
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@@ -5079,7 +5062,8 @@
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           "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
-          "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg="
+          "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=",
+          "optional": true
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@@ -5488,7 +5472,8 @@
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -5531,7 +5516,8 @@
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         "balanced-match": {
           "version": "0.4.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -5544,6 +5530,7 @@
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           "version": "0.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -5551,6 +5538,7 @@
         "boom": {
           "version": "2.10.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "hoek": "2.x.x"
           }
@@ -5558,6 +5546,7 @@
         "brace-expansion": {
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           "bundled": true,
+          "optional": true,
           "requires": {
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             "concat-map": "0.0.1"
@@ -5565,7 +5554,8 @@
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           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -5579,30 +5569,36 @@
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+          "bundled": true,
+          "optional": true
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           "bundled": true,
+          "optional": true,
           "requires": {
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           }
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         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "cryptiles": {
           "version": "2.0.5",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -5637,7 +5633,8 @@
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -5664,7 +5661,8 @@
         },
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+          "bundled": true,
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@@ -5683,11 +5681,13 @@
         },
         "fs.realpath": {
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "fstream": {
           "version": "1.0.11",
           "bundled": true,
+          "optional": true,
           "requires": {
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             "inherits": "~2.0.0",
@@ -5738,6 +5738,7 @@
         "glob": {
           "version": "7.1.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "fs.realpath": "^1.0.0",
             "inflight": "^1.0.4",
@@ -5749,7 +5750,8 @@
         },
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -5773,6 +5775,7 @@
         "hawk": {
           "version": "3.1.3",
           "bundled": true,
+          "optional": true,
           "requires": {
             "boom": "2.x.x",
             "cryptiles": "2.x.x",
@@ -5782,7 +5785,8 @@
         },
         "hoek": {
           "version": "2.16.3",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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           "version": "1.1.1",
@@ -5797,6 +5801,7 @@
         "inflight": {
           "version": "1.0.6",
           "bundled": true,
+          "optional": true,
           "requires": {
             "once": "^1.3.0",
             "wrappy": "1"
@@ -5804,7 +5809,8 @@
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         "inherits": {
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-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -5814,6 +5820,7 @@
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -5825,7 +5832,8 @@
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         "isarray": {
           "version": "1.0.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -5888,11 +5896,13 @@
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         "mime-db": {
           "version": "1.27.0",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "mime-types": {
           "version": "2.1.15",
           "bundled": true,
+          "optional": true,
           "requires": {
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           }
@@ -5900,17 +5910,20 @@
         "minimatch": {
           "version": "3.0.4",
           "bundled": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
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         "minimist": {
           "version": "0.0.8",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -5960,7 +5973,8 @@
         },
         "number-is-nan": {
           "version": "1.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -5975,6 +5989,7 @@
         "once": {
           "version": "1.4.0",
           "bundled": true,
+          "optional": true,
           "requires": {
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@@ -6000,7 +6015,8 @@
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         "path-is-absolute": {
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+          "bundled": true,
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@@ -6009,7 +6025,8 @@
         },
         "process-nextick-args": {
           "version": "1.0.7",
-          "bundled": true
+          "bundled": true,
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@@ -6042,6 +6059,7 @@
         "readable-stream": {
           "version": "2.2.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "buffer-shims": "~1.0.0",
             "core-util-is": "~1.0.0",
@@ -6084,13 +6102,15 @@
         "rimraf": {
           "version": "2.6.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "glob": "^7.0.5"
           }
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         "safe-buffer": {
           "version": "5.0.1",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -6110,6 +6130,7 @@
         "sntp": {
           "version": "1.0.9",
           "bundled": true,
+          "optional": true,
           "requires": {
             "hoek": "2.x.x"
           }
@@ -6140,6 +6161,7 @@
         "string-width": {
           "version": "1.0.2",
           "bundled": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
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@@ -6149,6 +6171,7 @@
         "string_decoder": {
           "version": "1.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.0.1"
           }
@@ -6161,6 +6184,7 @@
         "strip-ansi": {
           "version": "3.0.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -6173,6 +6197,7 @@
         "tar": {
           "version": "2.2.1",
           "bundled": true,
+          "optional": true,
           "requires": {
             "block-stream": "*",
             "fstream": "^1.0.2",
@@ -6222,7 +6247,8 @@
         },
         "util-deprecate": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
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@@ -6247,7 +6273,8 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "bundled": true,
+          "optional": true
         }
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@@ -7214,15 +7241,6 @@
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-      "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/got/-/got-6.7.1.tgz",
@@ -12298,12 +12316,9 @@
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-      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.14.0.tgz",
-      "integrity": "sha512-sa2s4m60bXs+kU3jcuUwx3ZCrUH7o0kuqnOOINbODqlRrDB7KY8SRx+xR/D7nHLlgfDdG7zXbRO8wJ+su5Ls0A==",
-      "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=="
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@@ -13468,7 +13483,8 @@
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       "resolved": "https://registry.npmjs.org/rsvp/-/rsvp-3.6.2.tgz",
-      "integrity": "sha512-OfWGQTb9vnwRjwtA2QwpG2ICclHC3pgXZO5xt8H2EfgDquO0qVdSb5T88L4qJVAEugbS56pAuV4XZM58UX8ulw=="
+      "integrity": "sha512-OfWGQTb9vnwRjwtA2QwpG2ICclHC3pgXZO5xt8H2EfgDquO0qVdSb5T88L4qJVAEugbS56pAuV4XZM58UX8ulw==",
+      "optional": true
     },
     "run-async": {
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@@ -13661,12 +13677,6 @@
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-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/select/-/select-1.1.2.tgz",
-      "integrity": "sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=",
-      "optional": true
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       "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
@@ -15087,12 +15097,6 @@
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-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.0.2.tgz",
-      "integrity": "sha512-2NM0auVBGft5tee/OxP4PI3d8WItkDM+fPnaRAVo6xTDI2knbz9eC5ArWGqtGlYqiH3RU5yMpdyTTO7MguC4ow==",
-      "optional": true
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       "resolved": "https://registry.npmjs.org/tinycolor2/-/tinycolor2-1.4.1.tgz",
@@ -15270,6 +15274,7 @@
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       "resolved": "https://registry.npmjs.org/traceur/-/traceur-0.0.105.tgz",
       "integrity": "sha1-XPne6D1rd4YcPWxE1ThZrterBHk=",
+      "optional": true,
       "requires": {
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@@ -15282,6 +15287,7 @@
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           "resolved": "https://registry.npmjs.org/glob/-/glob-5.0.15.tgz",
           "integrity": "sha1-G8k2ueAvSmA/zCIuz3Yz0wuLk7E=",
+          "optional": true,
           "requires": {
             "inflight": "^1.0.4",
             "inherits": "2",
@@ -15293,12 +15299,14 @@
         "semver": {
           "version": "4.3.6",
           "resolved": "https://registry.npmjs.org/semver/-/semver-4.3.6.tgz",
-          "integrity": "sha1-MAvG4OhjdPe6YQaLWx7NV/xlMto="
+          "integrity": "sha1-MAvG4OhjdPe6YQaLWx7NV/xlMto=",
+          "optional": true
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         "source-map": {
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           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.32.tgz",
           "integrity": "sha1-yLbBZ3l7pHQKjqMyUhYv8IWRsmY=",
+          "optional": true,
           "requires": {
             "amdefine": ">=0.0.4"
           }
@@ -15307,6 +15315,7 @@
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           "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.2.10.tgz",
           "integrity": "sha1-6lo5AKHByyUJagrozFwrSxDe09w=",
+          "optional": true,
           "requires": {
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           }
diff --git a/package.json b/package.json
index f643dc7..a54133c 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "gatsby-transformer-sharp": "1.6.23",
     "glamorous": "4.12.4",
     "normalize.css": "8.0.0",
-    "prismjs": "1.14.0",
+    "prismjs": "1.27.0",
     "react-helmet": "5.0.3",
     "typography-theme-kirkham": "0.16.3"
   },