diff --git a/package-lock.json b/package-lock.json
index a1605b9..328976f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -140,6 +140,14 @@
         "luxon": "^1.0.0",
         "posthtml": "^0.11.2",
         "posthtml-urls": "1.0.0"
+      },
+      "dependencies": {
+        "luxon": {
+          "version": "1.28.1",
+          "resolved": "https://registry.npmjs.org/luxon/-/luxon-1.28.1.tgz",
+          "integrity": "sha512-gYHAa180mKrNIUJCbwpmD0aTu9kV0dREDrwNnuyFAsO1Wt0EVYSZelPnJlbj9HplzXX/YWXHFTL45kvZ53M0pw==",
+          "dev": true
+        }
       }
     },
     "@11ty/eleventy-plugin-syntaxhighlight": {
@@ -7495,9 +7503,9 @@
       }
     },
     "luxon": {
-      "version": "1.21.3",
-      "resolved": "https://registry.npmjs.org/luxon/-/luxon-1.21.3.tgz",
-      "integrity": "sha512-lLRwNcNnkZLuv13A1FUuZRZmTWF7ro2ricYvb0L9cvBYHPvZhQdKwrYnZzi103D2XKmlVmxWpdn2wfIiOt2YEw==",
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/luxon/-/luxon-2.5.2.tgz",
+      "integrity": "sha512-Yg7/RDp4nedqmLgyH0LwgGRvMEKVzKbUdkBYyCosbHgJ+kaOUx0qzSiSatVc3DFygnirTPYnMM2P5dg2uH1WvA==",
       "dev": true
     },
     "make-dir": {
diff --git a/package.json b/package.json
index 166e8fd..c19d9e3 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "css-loader": "^2.1.1",
     "eleventy-plugin-nesting-toc": "^1.1.0",
     "express": "^4.17.1",
-    "luxon": "^1.21.3",
+    "luxon": "^2.5.2",
     "markdown-it": "^8.4.1",
     "markdown-it-anchor": "^5.2.5",
     "mini-css-extract-plugin": "^0.5.0",