diff --git a/package.json b/package.json
index 61b97c1..eb521ee 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "gatsby-source-filesystem": "^2.0.28",
     "gatsby-transformer-remark": "^2.3.8",
     "gatsby-transformer-sharp": "^2.1.17",
-    "prismjs": "^1.16.0",
+    "prismjs": "^1.23.0",
     "prop-types": "^15.7.2",
     "react": "^16.8.5",
     "react-dom": "^16.8.5",
diff --git a/yarn.lock b/yarn.lock
index 42a1953..b91d20c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10429,10 +10429,10 @@ pretty-format@^23.6.0:
     ansi-regex "^3.0.0"
     ansi-styles "^3.2.0"
 
-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"