diff --git a/package-lock.json b/package-lock.json
index cb7d001..c3f47b5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -43,6 +43,31 @@
         "valid-url": "^1.0.9"
       },
       "dependencies": {
+        "entities": {
+          "version": "1.1.2",
+          "resolved": "https://registry.npmjs.org/entities/-/entities-1.1.2.tgz",
+          "integrity": "sha512-f2LZMYl1Fzu7YSBKg+RoROelpOaNrcGmE9AZubeDfrCEia483oW4MI4VyFd5VNHIgQ/7qm1I0wUHK1eJnn2y2w=="
+        },
+        "linkify-it": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/linkify-it/-/linkify-it-2.2.0.tgz",
+          "integrity": "sha512-GnAl/knGn+i1U/wjBz3akz2stz+HrHLsxMwHQGofCDfPvlf+gDKN58UtfmUquTY4/MXeE2x7k19KQmeoZi94Iw==",
+          "requires": {
+            "uc.micro": "^1.0.1"
+          }
+        },
+        "markdown-it": {
+          "version": "8.4.2",
+          "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-8.4.2.tgz",
+          "integrity": "sha512-GcRz3AWTqSUphY3vsUqQSFMbgR38a4Lh3GWlHRh/7MRwz8mcu9n2IO7HOh+bXHrR9kOPDl5RNCaEsrneb+xhHQ==",
+          "requires": {
+            "argparse": "^1.0.7",
+            "entities": "~1.1.1",
+            "linkify-it": "^2.0.0",
+            "mdurl": "^1.0.1",
+            "uc.micro": "^1.0.5"
+          }
+        },
         "semver": {
           "version": "6.1.1",
           "resolved": "https://registry.npmjs.org/semver/-/semver-6.1.1.tgz",
@@ -1340,9 +1365,9 @@
       }
     },
     "entities": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/entities/-/entities-1.1.2.tgz",
-      "integrity": "sha512-f2LZMYl1Fzu7YSBKg+RoROelpOaNrcGmE9AZubeDfrCEia483oW4MI4VyFd5VNHIgQ/7qm1I0wUHK1eJnn2y2w=="
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-2.1.0.tgz",
+      "integrity": "sha512-hCx1oky9PFrJ611mf0ifBLBRW8lUUVRlFolb5gWRfIELabBlbp9xZvrqZLZAs+NxFnbfQoeGd8wDkygjg7U85w=="
     },
     "errno": {
       "version": "0.1.7",
@@ -3023,9 +3048,9 @@
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     },
     "linkify-it": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/linkify-it/-/linkify-it-2.1.0.tgz",
-      "integrity": "sha512-4REs8/062kV2DSHxNfq5183zrqXMl7WP0WzABH9IeJI+NLm429FgE1PDecltYfnOoFDFlZGh2T8PfZn0r+GTRg==",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/linkify-it/-/linkify-it-3.0.3.tgz",
+      "integrity": "sha512-ynTsyrFSdE5oZ/O9GEf00kPngmOfVwazR5GKDq6EYfhlpFug3J2zybX56a2PRRpc9P+FuSoGNAwjlbDs9jJBPQ==",
       "requires": {
         "uc.micro": "^1.0.1"
       }
@@ -3176,15 +3201,22 @@
       }
     },
     "markdown-it": {
-      "version": "8.4.2",
-      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-8.4.2.tgz",
-      "integrity": "sha512-GcRz3AWTqSUphY3vsUqQSFMbgR38a4Lh3GWlHRh/7MRwz8mcu9n2IO7HOh+bXHrR9kOPDl5RNCaEsrneb+xhHQ==",
+      "version": "12.3.2",
+      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-12.3.2.tgz",
+      "integrity": "sha512-TchMembfxfNVpHkbtriWltGWc+m3xszaRD0CZup7GFFhzIgQqxIfn3eGj1yZpfuflzPvfkt611B2Q/Bsk1YnGg==",
       "requires": {
-        "argparse": "^1.0.7",
-        "entities": "~1.1.1",
-        "linkify-it": "^2.0.0",
+        "argparse": "^2.0.1",
+        "entities": "~2.1.0",
+        "linkify-it": "^3.0.1",
         "mdurl": "^1.0.1",
         "uc.micro": "^1.0.5"
+      },
+      "dependencies": {
+        "argparse": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
+          "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="
+        }
       }
     },
     "maximatch": {
diff --git a/package.json b/package.json
index 4eb72ba..a34cc8c 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "@11ty/eleventy": "^0.8.3",
     "clean-css": "^4.2.1",
     "jsdom": "^14.1.0",
-    "markdown-it": "^8.4.2"
+    "markdown-it": "^12.3.2"
   },
   "devDependencies": {
     "node-fetch": "^2.6.0",