diff --git a/yarn.lock b/yarn.lock
index ea86fba..7253942 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1929,15 +1929,6 @@ cli-cursor@^2.0.0:
   dependencies:
     restore-cursor "^2.0.0"
 
-clipboard@^2.0.0:
-  version "2.0.4"
-  resolved "http://npm.zhaopin.com/clipboard/-/clipboard-2.0.4.tgz#836dafd66cf0fea5d71ce5d5b0bf6e958009112d"
-  integrity sha1-g22v1mzw/qXXHOXVsL9ulYAJES0=
-  dependencies:
-    good-listener "^1.2.2"
-    select "^1.1.2"
-    tiny-emitter "^2.0.0"
-
 clipboardy@^1.2.2:
   version "1.2.3"
   resolved "http://npm.zhaopin.com/clipboardy/-/clipboardy-1.2.3.tgz#0526361bf78724c1f20be248d428e365433c07ef"
@@ -2540,11 +2531,6 @@ delayed-stream@~1.0.0:
   resolved "http://npm.zhaopin.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
   integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
 
-delegate@^3.1.2:
-  version "3.2.0"
-  resolved "http://npm.zhaopin.com/delegate/-/delegate-3.2.0.tgz#b66b71c3158522e8ab5744f720d8ca0c2af59166"
-  integrity sha1-tmtxwxWFIuirV0T3INjKDCr1kWY=
-
 delegates@^1.0.0:
   version "1.0.0"
   resolved "http://npm.zhaopin.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
@@ -3360,13 +3346,6 @@ globby@^8.0.1:
     pify "^3.0.0"
     slash "^1.0.0"
 
-good-listener@^1.2.2:
-  version "1.2.2"
-  resolved "http://npm.zhaopin.com/good-listener/-/good-listener-1.2.2.tgz#d53b30cdf9313dffb7dc9a0d477096aa6d145c50"
-  integrity sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=
-  dependencies:
-    delegate "^3.1.2"
-
 got@^6.7.1:
   version "6.7.1"
   resolved "http://npm.zhaopin.com/got/-/got-6.7.1.tgz#240cd05785a9a18e561dc1b44b41c763ef1e8db0"
@@ -5807,11 +5786,9 @@ pretty-time@^1.1.0:
   integrity sha1-/7dCmvq7hTXDRqNOQYc63z103Q4=
 
 prismjs@^1.13.0:
-  version "1.16.0"
-  resolved "http://npm.zhaopin.com/prismjs/-/prismjs-1.16.0.tgz#406eb2c8aacb0f5f0f1167930cb83835d10a4308"
-  integrity sha1-QG6yyKrLD18PEWeTDLg4NdEKQwg=
-  optionalDependencies:
-    clipboard "^2.0.0"
+  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:
   version "0.1.8"
@@ -6346,11 +6323,6 @@ section-matter@^1.0.0:
     extend-shallow "^2.0.1"
     kind-of "^6.0.0"
 
-select@^1.1.2:
-  version "1.1.2"
-  resolved "http://npm.zhaopin.com/select/-/select-1.1.2.tgz#0e7350acdec80b1108528786ec1d4418d11b396d"
-  integrity sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=
-
 semver-diff@^2.0.0:
   version "2.1.0"
   resolved "http://npm.zhaopin.com/semver-diff/-/semver-diff-2.1.0.tgz#4bbb8437c8d37e4b0cf1a68fd726ec6d645d6d36"
@@ -6933,11 +6905,6 @@ timers-browserify@^2.0.4:
   dependencies:
     setimmediate "^1.0.4"
 
-tiny-emitter@^2.0.0:
-  version "2.1.0"
-  resolved "http://npm.zhaopin.com/tiny-emitter/-/tiny-emitter-2.1.0.tgz#1d1a56edfc51c43e863cbb5382a72330e3555423"
-  integrity sha1-HRpW7fxRxD6GPLtTgqcjMONVVCM=
-
 to-arraybuffer@^1.0.0:
   version "1.0.1"
   resolved "http://npm.zhaopin.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"