diff --git a/package.json b/package.json
index 3406b09..568b99c 100644
--- a/package.json
+++ b/package.json
@@ -46,6 +46,6 @@
     "webpack-dev-server": "^3.1.9"
   },
   "dependencies": {
-    "prismjs": "^1.21.0"
+    "prismjs": "^1.27.0"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index ba35ebd..eccc0b1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2320,15 +2320,6 @@ clean-css@4.2.x:
   dependencies:
     source-map "~0.6.0"
 
-clipboard@^2.0.0:
-  version "2.0.6"
-  resolved "https://registry.npmjs.org/clipboard/-/clipboard-2.0.6.tgz"
-  integrity sha512-g5zbiixBRk/wyKakSwCKd7vQXDjFnAMGHoEyBogG/bw9kTD9GvdAvaoRR1ALcEzt3pVKxZR0pViekPMIS0QyGg==
-  dependencies:
-    good-listener "^1.2.2"
-    select "^1.1.2"
-    tiny-emitter "^2.0.0"
-
 cliui@^3.2.0:
   version "3.2.0"
   resolved "https://registry.npmjs.org/cliui/-/cliui-3.2.0.tgz"
@@ -2783,11 +2774,6 @@ delayed-stream@~1.0.0:
   resolved "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz"
   integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
-delegate@^3.1.2:
-  version "3.2.0"
-  resolved "https://registry.npmjs.org/delegate/-/delegate-3.2.0.tgz"
-  integrity sha512-IofjkYBZaZivn0V8nnsMJGBr4jVLxHDheKSW88PyxS5QC4Vo9ZbZVvhzlSxY87fVq3STR6r+4cGepyHkcWOQSw==
-
 delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz"
@@ -3578,13 +3564,6 @@ globule@^1.0.0:
     lodash "~4.17.12"
     minimatch "~3.0.2"
 
-good-listener@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.npmjs.org/good-listener/-/good-listener-1.2.2.tgz"
-  integrity sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=
-  dependencies:
-    delegate "^3.1.2"
-
 graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2:
   version "4.2.3"
   resolved "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.3.tgz"
@@ -5463,12 +5442,10 @@ pretty-error@^2.0.2:
     renderkid "^2.0.1"
     utila "~0.4"
 
-prismjs@^1.21.0:
-  version "1.21.0"
-  resolved "https://registry.npmjs.org/prismjs/-/prismjs-1.21.0.tgz"
-  integrity sha512-uGdSIu1nk3kej2iZsLyDoJ7e9bnPzIgY0naW/HdknGj61zScaprVEVGHrPoXqI+M9sP0NDnTK2jpkvmldpuqDw==
-  optionalDependencies:
-    clipboard "^2.0.0"
+prismjs@^1.27.0:
+  version "1.27.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.27.0.tgz#bb6ee3138a0b438a3653dd4d6ce0cc6510a45057"
+  integrity sha512-t13BGPUlFDR7wRB5kQDG4jjl7XeuH6jbJGt11JHPL96qwsEHNX2+68tFXqc1/k+/jALsbSWJKUOT/hcYAZ5LkA==
 
 private@^0.1.6, private@^0.1.8:
   version "0.1.8"
@@ -6099,11 +6076,6 @@ select-hose@^2.0.0:
   resolved "https://registry.npmjs.org/select-hose/-/select-hose-2.0.0.tgz"
   integrity sha1-Yl2GWPhlr0Psliv8N2o3NZpJlMo=
 
-select@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.npmjs.org/select/-/select-1.1.2.tgz"
-  integrity sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=
-
 selfsigned@^1.10.7:
   version "1.10.7"
   resolved "https://registry.npmjs.org/selfsigned/-/selfsigned-1.10.7.tgz"
@@ -6680,11 +6652,6 @@ timers-browserify@^2.0.4:
   dependencies:
     setimmediate "^1.0.4"
 
-tiny-emitter@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.1.0.tgz"
-  integrity sha512-NB6Dk1A9xgQPMoGqC5CVXn123gWyte215ONT5Pp5a0yt4nlEoO1ZWeCwpncaekPHXO60i47ihFnZPiRPjRMq4Q==
-
 tiny-invariant@^1.0.2:
   version "1.1.0"
   resolved "https://registry.npmjs.org/tiny-invariant/-/tiny-invariant-1.1.0.tgz"