diff --git a/yarn.lock b/yarn.lock
index acdadcc..7efe8e5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1900,15 +1900,6 @@ classnames@2.x, classnames@^2.2.1, classnames@^2.2.6:
   resolved "https://registry.npmjs.org/classnames/-/classnames-2.3.1.tgz#dfcfa3891e306ec1dad105d0e88f4417b8535e8e"
   integrity sha512-OlQdbZ7gLfGarSqxesMesDa5uz7KFbID8Kpq/SxIoNGDqY8lSYs0D+hhtBXhcdB3rcbXArFr7vlHheLk1voeNA==
 
-clipboard@^2.0.0:
-  version "2.0.8"
-  resolved "https://registry.npmjs.org/clipboard/-/clipboard-2.0.8.tgz#ffc6c103dd2967a83005f3f61976aa4655a4cdba"
-  integrity sha512-Y6WO0unAIQp5bLmk1zdThRhgJt/x3ks6f30s3oE3H1mgIEU33XyQjEf8gsf6DxC7NPX8Y1SsNWjUjL/ywLnnbQ==
-  dependencies:
-    good-listener "^1.2.2"
-    select "^1.1.2"
-    tiny-emitter "^2.0.0"
-
 clipboardy@2.3.0:
   version "2.3.0"
   resolved "https://registry.npmjs.org/clipboardy/-/clipboardy-2.3.0.tgz#3c2903650c68e46a91b388985bc2774287dba290"
@@ -2356,11 +2347,6 @@ delayed-stream@~1.0.0:
   resolved "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
   integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
-delegate@^3.1.2:
-  version "3.2.0"
-  resolved "https://registry.npmjs.org/delegate/-/delegate-3.2.0.tgz#b66b71c3158522e8ab5744f720d8ca0c2af59166"
-  integrity sha512-IofjkYBZaZivn0V8nnsMJGBr4jVLxHDheKSW88PyxS5QC4Vo9ZbZVvhzlSxY87fVq3STR6r+4cGepyHkcWOQSw==
-
 delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
@@ -3098,13 +3084,6 @@ globule@^1.0.0:
     lodash "~4.17.10"
     minimatch "~3.0.2"
 
-good-listener@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.npmjs.org/good-listener/-/good-listener-1.2.2.tgz#d53b30cdf9313dffb7dc9a0d477096aa6d145c50"
-  integrity sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=
-  dependencies:
-    delegate "^3.1.2"
-
 graceful-fs@4.1.11:
   version "4.1.11"
   resolved "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
@@ -5489,11 +5468,9 @@ prism-react-renderer@^1.1.1:
   integrity sha512-w23ch4f75V1Tnz8DajsYKvY5lF7H1+WvzvLUcF0paFxkTHSp42RS0H5CttdN2Q8RR3DRGZ9v5xD/h3n8C8kGmg==
 
 prismjs@^1.21.0:
-  version "1.23.0"
-  resolved "https://registry.npmjs.org/prismjs/-/prismjs-1.23.0.tgz#d3b3967f7d72440690497652a9d40ff046067f33"
-  integrity sha512-c29LVsqOaLbBHuIbsTxaKENh1N2EQBOHaWv7gkHN4dgRbxSREqDnDbtFJYdpPauS4YCplMSNCABQ6Eeor69bAA==
-  optionalDependencies:
-    clipboard "^2.0.0"
+  version "1.24.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.24.0.tgz#0409c30068a6c52c89ef7f1089b3ca4de56be2ac"
+  integrity sha512-SqV5GRsNqnzCL8k5dfAjCNhUrF3pR0A9lTDSCUZeh/LIshheXJEaP0hwLz2t4XHivd2J/v2HR+gRnigzeKe3cQ==
 
 private@^0.1.6, private@^0.1.8:
   version "0.1.8"
@@ -6229,11 +6206,6 @@ scss-tokenizer@^0.2.3:
     js-base64 "^2.1.8"
     source-map "^0.4.2"
 
-select@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.npmjs.org/select/-/select-1.1.2.tgz#0e7350acdec80b1108528786ec1d4418d11b396d"
-  integrity sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=
-
 "semver@2 || 3 || 4 || 5", semver@^5.3.0, semver@^5.5.0, semver@^5.6.0:
   version "5.7.1"
   resolved "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
@@ -6754,11 +6726,6 @@ 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#1d1a56edfc51c43e863cbb5382a72330e3555423"
-  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#634c5f8efdc27714b7f386c35e6760991d230875"