diff --git a/package.json b/package.json
index d254b5df57..79655a693f 100644
--- a/package.json
+++ b/package.json
@@ -78,7 +78,7 @@
     "multer": "^1.3.0",
     "postcss-loader": "^1.3.3",
     "pre-commit": "^1.2.2",
-    "prismjs": "^1.5.1",
+    "prismjs": "^1.24.0",
     "react-addons-pure-render-mixin": "^15.5.2",
     "react-addons-test-utils": "^15.5.1",
     "react-router": "^3.0.2",
diff --git a/yarn.lock b/yarn.lock
index 1a1d5969fe..201dc3247e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2056,14 +2056,6 @@ cli-width@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
 
-clipboard@^1.5.5:
-  version "1.7.1"
-  resolved "https://registry.yarnpkg.com/clipboard/-/clipboard-1.7.1.tgz#360d6d6946e99a7a1fef395e42ba92b5e9b5a16b"
-  dependencies:
-    good-listener "^1.2.2"
-    select "^1.1.2"
-    tiny-emitter "^2.0.0"
-
 cliui@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
@@ -2616,10 +2608,6 @@ delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
 
-delegate@^3.1.2:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/delegate/-/delegate-3.1.3.tgz#9a8251a777d7025faa55737bc3b071742127a9fd"
-
 delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
@@ -3695,12 +3683,6 @@ globby@^5.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
-good-listener@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/good-listener/-/good-listener-1.2.2.tgz#d53b30cdf9313dffb7dc9a0d477096aa6d145c50"
-  dependencies:
-    delegate "^3.1.2"
-
 got@^6.7.1:
   version "6.7.1"
   resolved "https://registry.yarnpkg.com/got/-/got-6.7.1.tgz#240cd05785a9a18e561dc1b44b41c763ef1e8db0"
@@ -6304,11 +6286,9 @@ pretty-format@^18.1.0:
   dependencies:
     ansi-styles "^2.2.1"
 
-prismjs@^1.5.1:
-  version "1.8.4"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.8.4.tgz#573cc7a14c2c06566e1eca20d813f5ae55db80d2"
-  optionalDependencies:
-    clipboard "^1.5.5"
+prismjs@^1.24.0:
+  version "1.24.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.24.0.tgz#0409c30068a6c52c89ef7f1089b3ca4de56be2ac"
 
 private@^0.1.6, private@^0.1.7, private@~0.1.5:
   version "0.1.8"
@@ -7178,10 +7158,6 @@ seekout@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/seekout/-/seekout-1.0.2.tgz#09ba9f1bd5b46fbb134718eb19a68382cbb1b9c9"
 
-select@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/select/-/select-1.1.2.tgz#0e7350acdec80b1108528786ec1d4418d11b396d"
-
 semver-diff@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/semver-diff/-/semver-diff-2.1.0.tgz#4bbb8437c8d37e4b0cf1a68fd726ec6d645d6d36"
@@ -7762,10 +7738,6 @@ timers-browserify@^2.0.2:
   dependencies:
     setimmediate "^1.0.4"
 
-tiny-emitter@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-2.0.2.tgz#82d27468aca5ade8e5fd1e6d22b57dd43ebdfb7c"
-
 tlds@^1.197.0:
   version "1.199.0"
   resolved "https://registry.yarnpkg.com/tlds/-/tlds-1.199.0.tgz#a4fc8c3058216488a80aaaebb427925007e55217"