diff --git a/package.json b/package.json
index 213dcd3..cc21492 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "gatsby-transformer-remark": "^2.3.8",
     "gatsby-transformer-sharp": "^2.1.17",
     "gh-pages": "^2.0.1",
-    "prismjs": "^1.16.0",
+    "prismjs": "^1.23.0",
     "react": "^16.8.4",
     "react-dom": "^16.8.4",
     "react-helmet": "^5.2.0",
diff --git a/yarn.lock b/yarn.lock
index 9a78d82..38b69bb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9343,10 +9343,10 @@ pretty-error@^2.1.1:
     renderkid "^2.0.1"
     utila "~0.4"
 
-prismjs@^1.16.0:
-  version "1.16.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.16.0.tgz#406eb2c8aacb0f5f0f1167930cb83835d10a4308"
-  integrity sha512-OA4MKxjFZHSvZcisLGe14THYsug/nF6O1f0pAJc0KN0wTyAcLqmsbE+lTGKSpyh+9pEW57+k6pg2AfYR+coyHA==
+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"