diff --git a/package.json b/package.json
index 8a93441..f66d066 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "gatsby-source-filesystem": "^2.1.28",
     "gatsby-transformer-remark": "^2.6.26",
     "gatsby-transformer-sharp": "^2.2.19",
-    "prismjs": "^1.16.0",
+    "prismjs": "^1.23.0",
     "react": "^16.10.1",
     "react-dom": "^16.10.1",
     "react-helmet": "^5.2.1",
diff --git a/yarn.lock b/yarn.lock
index bb5ce42..e9c34ca 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10146,10 +10146,10 @@ pretty-error@^2.1.1:
     renderkid "^2.0.1"
     utila "~0.4"
 
-prismjs@^1.16.0:
-  version "1.17.1"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.17.1.tgz#e669fcbd4cdd873c35102881c33b14d0d68519be"
-  integrity sha512-PrEDJAFdUGbOP6xK/UsfkC5ghJsPJviKgnQOoxaDbBjwc8op68Quupwt1DeAFoG8GImPhiKXAvvsH7wDSLsu1Q==
+prismjs@^1.23.0:
+  version "1.23.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.23.0.tgz#d3b3967f7d72440690497652a9d40ff046067f33"
+  integrity sha512-c29LVsqOaLbBHuIbsTxaKENh1N2EQBOHaWv7gkHN4dgRbxSREqDnDbtFJYdpPauS4YCplMSNCABQ6Eeor69bAA==
   optionalDependencies:
     clipboard "^2.0.0"