diff --git a/package.json b/package.json
index d169953..499c012 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "gatsby-source-contentful": "^2.1.86",
     "gatsby-transformer-remark": "^2.1.12",
     "moment": "^2.22.2",
-    "prismjs": "^1.15.0",
+    "prismjs": "^1.25.0",
     "prop-types": "^15.6.2",
     "react": "^16.6.3",
     "react-dom": "^16.6.3",
diff --git a/yarn.lock b/yarn.lock
index 85589a5..8d029fe 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3587,7 +3587,7 @@ chalk@2.4.2, chalk@^2.0.0, chalk@^2.4.1, chalk@^2.4.2:
 
 chalk@^1.0.0:
   version "1.1.3"
-  resolved "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
+  resolved "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
     ansi-styles "^2.2.1"
     escape-string-regexp "^1.0.2"
@@ -3760,14 +3760,6 @@ 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 "2.0.1"
-  resolved "https://registry.yarnpkg.com/clipboard/-/clipboard-2.0.1.tgz#a12481e1c13d8a50f5f036b0560fe5d16d74e46a"
-  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.yarnpkg.com/clipboardy/-/clipboardy-2.3.0.tgz#3c2903650c68e46a91b388985bc2774287dba290"
@@ -4718,10 +4710,6 @@ 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"
-
 delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
@@ -7187,12 +7175,6 @@ globby@^8.0.1:
     pify "^3.0.0"
     slash "^1.0.0"
 
-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@^11.8.2:
   version "11.8.3"
   resolved "https://registry.yarnpkg.com/got/-/got-11.8.3.tgz#f496c8fdda5d729a90b4905d2b07dbd148170770"
@@ -11375,11 +11357,10 @@ pretty-format@^25.5.0:
     ansi-styles "^4.0.0"
     react-is "^16.12.0"
 
-prismjs@^1.15.0:
-  version "1.15.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.15.0.tgz#8801d332e472091ba8def94976c8877ad60398d9"
-  optionalDependencies:
-    clipboard "^2.0.0"
+prismjs@^1.25.0:
+  version "1.25.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.25.0.tgz#6f822df1bdad965734b310b315a23315cf999756"
+  integrity sha512-WCjJHl1KEWbnkQom1+SzftbtXMKQoezOCYs5rECqMN+jP+apI7ftoflyqigqzopSO3hMhTEb0mFClA8lkolgEg==
 
 probe-image-size@^4.1.1:
   version "4.1.1"
@@ -12420,10 +12401,6 @@ 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"
-
 semver-diff@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/semver-diff/-/semver-diff-3.1.1.tgz#05f77ce59f325e00e2706afd67bb506ddb1ca32b"
@@ -13529,10 +13506,6 @@ timsort@^0.3.0:
   resolved "https://registry.yarnpkg.com/timsort/-/timsort-0.3.0.tgz#405411a8e7e6339fe64db9a234de11dc31e02bd4"
   integrity sha1-QFQRqOfmM5/mTbmiNN4R3DHgK9Q=
 
-tiny-emitter@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-2.0.2.tgz#82d27468aca5ade8e5fd1e6d22b57dd43ebdfb7c"
-
 tinycolor2@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/tinycolor2/-/tinycolor2-1.4.1.tgz#f4fad333447bc0b07d4dc8e9209d8f39a8ac77e8"