diff --git a/config/filters/index.js b/config/filters/index.js
index b1f022ca..5fb285cf 100644
--- a/config/filters/index.js
+++ b/config/filters/index.js
@@ -171,7 +171,7 @@ export default {
     return `${allButLast} and ${last}`
   },
   bookStatus: (books, status) => books.filter(book => book.status === status),
-  bookSortDescending: (books) => books.sort((a, b) => {
+  bookSortDescending: (books) => books.filter(book => !isNaN(DateTime.fromISO(book.date).toMillis())).sort((a, b) => {
     const dateA = DateTime.fromISO(a.date)
     const dateB = DateTime.fromISO(b.date)
     return dateB - dateA
diff --git a/package-lock.json b/package-lock.json
index 6f084d81..edb45782 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "coryd.dev",
-  "version": "19.3.19",
+  "version": "19.3.20",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "coryd.dev",
-      "version": "19.3.19",
+      "version": "19.3.20",
       "license": "MIT",
       "dependencies": {
         "@cdransf/api-text": "^1.4.0",
diff --git a/package.json b/package.json
index 69d39cf7..b5150113 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "coryd.dev",
-  "version": "19.3.19",
+  "version": "19.3.20",
   "description": "The source for my personal site. Built using 11ty.",
   "type": "module",
   "scripts": {