diff --git a/package-lock.json b/package-lock.json
index 80a7c67..12f2882 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3269,16 +3269,39 @@
       }
     },
     "markdown-it": {
-      "version": "9.1.0",
-      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-9.1.0.tgz",
-      "integrity": "sha512-xHKG4C8iPriyfu/jc2hsCC045fKrMQ0VexX2F1FGYiRxDxqMB2aAhF8WauJ3fltn2kb90moGBkiiEdooGIg55w==",
+      "version": "12.3.2",
+      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-12.3.2.tgz",
+      "integrity": "sha512-TchMembfxfNVpHkbtriWltGWc+m3xszaRD0CZup7GFFhzIgQqxIfn3eGj1yZpfuflzPvfkt611B2Q/Bsk1YnGg==",
       "dev": true,
       "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==",
+          "dev": true
+        },
+        "entities": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/entities/-/entities-2.1.0.tgz",
+          "integrity": "sha512-hCx1oky9PFrJ611mf0ifBLBRW8lUUVRlFolb5gWRfIELabBlbp9xZvrqZLZAs+NxFnbfQoeGd8wDkygjg7U85w==",
+          "dev": true
+        },
+        "linkify-it": {
+          "version": "3.0.3",
+          "resolved": "https://registry.npmjs.org/linkify-it/-/linkify-it-3.0.3.tgz",
+          "integrity": "sha512-ynTsyrFSdE5oZ/O9GEf00kPngmOfVwazR5GKDq6EYfhlpFug3J2zybX56a2PRRpc9P+FuSoGNAwjlbDs9jJBPQ==",
+          "dev": true,
+          "requires": {
+            "uc.micro": "^1.0.1"
+          }
+        }
       }
     },
     "markdown-it-anchor": {
diff --git a/package.json b/package.json
old mode 100755
new mode 100644
index 8f319fa..db3074e
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "@11ty/eleventy-plugin-rss": "^1.0.3",
     "@11ty/eleventy-plugin-syntaxhighlight": "^2.0.0",
     "luxon": "^1.0.0",
-    "markdown-it": "^9.1.0",
+    "markdown-it": "^12.3.2",
     "markdown-it-anchor": "^5.0.2"
   }
 }