diff --git a/website/yarn.lock b/website/yarn.lock
index 38d9ccb..088ba33 100644
--- a/website/yarn.lock
+++ b/website/yarn.lock
@@ -1331,15 +1331,6 @@ cli-width@^2.0.0:
   resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
   integrity sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=
 
-clipboard@^2.0.0:
-  version "2.0.4"
-  resolved "https://registry.yarnpkg.com/clipboard/-/clipboard-2.0.4.tgz#836dafd66cf0fea5d71ce5d5b0bf6e958009112d"
-  integrity sha512-Vw26VSLRpJfBofiVaFb/I8PVfdI1OxKcYShe6fm0sP/DtmiWQNCjhM/okTvdCo0G+lMMm1rMYbk4IK4x1X+kgQ==
-  dependencies:
-    good-listener "^1.2.2"
-    select "^1.1.2"
-    tiny-emitter "^2.0.0"
-
 clone-response@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/clone-response/-/clone-response-1.0.2.tgz#d1dc973920314df67fbeb94223b4ee350239e96b"
@@ -1852,11 +1843,6 @@ delayed-stream@~1.0.0:
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
   integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
-delegate@^3.1.2:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/delegate/-/delegate-3.2.0.tgz#b66b71c3158522e8ab5744f720d8ca0c2af59166"
-  integrity sha512-IofjkYBZaZivn0V8nnsMJGBr4jVLxHDheKSW88PyxS5QC4Vo9ZbZVvhzlSxY87fVq3STR6r+4cGepyHkcWOQSw==
-
 depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
@@ -2708,13 +2694,6 @@ globule@^1.0.0:
     lodash "~4.17.10"
     minimatch "~3.0.2"
 
-good-listener@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/good-listener/-/good-listener-1.2.2.tgz#d53b30cdf9313dffb7dc9a0d477096aa6d145c50"
-  integrity sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=
-  dependencies:
-    delegate "^3.1.2"
-
 got@^7.0.0:
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/got/-/got-7.1.0.tgz#05450fd84094e6bbea56f451a43a9c289166385a"
@@ -4604,11 +4583,9 @@ prepend-http@^2.0.0:
   integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
 
 prismjs@^1.15.0:
-  version "1.15.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.15.0.tgz#8801d332e472091ba8def94976c8877ad60398d9"
-  integrity sha512-Lf2JrFYx8FanHrjoV5oL8YHCclLQgbJcVZR+gikGGMqz6ub5QVWDTM6YIwm3BuPxM/LOV+rKns3LssXNLIf+DA==
-  optionalDependencies:
-    clipboard "^2.0.0"
+  version "1.25.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.25.0.tgz#6f822df1bdad965734b310b315a23315cf999756"
+  integrity sha512-WCjJHl1KEWbnkQom1+SzftbtXMKQoezOCYs5rECqMN+jP+apI7ftoflyqigqzopSO3hMhTEb0mFClA8lkolgEg==
 
 private@^0.1.6:
   version "0.1.8"
@@ -5094,11 +5071,6 @@ seek-bzip@^1.0.5:
   dependencies:
     commander "~2.8.1"
 
-select@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/select/-/select-1.1.2.tgz#0e7350acdec80b1108528786ec1d4418d11b396d"
-  integrity sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=
-
 semver-regex@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/semver-regex/-/semver-regex-2.0.0.tgz#a93c2c5844539a770233379107b38c7b4ac9d338"
@@ -5606,11 +5578,6 @@ timed-out@^4.0.0, timed-out@^4.0.1:
   resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
   integrity sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8=
 
-tiny-emitter@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-2.0.2.tgz#82d27468aca5ade8e5fd1e6d22b57dd43ebdfb7c"
-  integrity sha512-2NM0auVBGft5tee/OxP4PI3d8WItkDM+fPnaRAVo6xTDI2knbz9eC5ArWGqtGlYqiH3RU5yMpdyTTO7MguC4ow==
-
 tiny-lr@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/tiny-lr/-/tiny-lr-1.1.1.tgz#9fa547412f238fedb068ee295af8b682c98b2aab"