diff --git a/.check_date.sh b/.check_date.sh
new file mode 100755
index 0000000..831a6dd
--- /dev/null
+++ b/.check_date.sh
@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+grep $(date -u -I) mod.conf
+exit $?
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 94c1c38..6d4489f 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -17,6 +17,13 @@ repos:
         pass_filenames: true
         exclude: .pre-commit-config.yaml
         fail_fast: true
+      - id: date_version
+        name: date version
+        language: script
+        entry: .check_date.sh
+        files: mod.conf
+        always_run: true
+        fail_fast: true
       - id: stylua
         name: stylua
         language: system
diff --git a/mod.conf b/mod.conf
index ec9d2fa..47ddb28 100644
--- a/mod.conf
+++ b/mod.conf
@@ -5,6 +5,6 @@ website = https://content.minetest.net/packages/rheo/book_runner/
 author = fluxionary
 license = LGPL-3.0-or-later
 media_license = CC-BY-SA-4.0
-version = 2023-05-12
+version = 2024-09-11
 min_minetest_version = 5.7.0
 depends = default, fmod, futil
diff --git a/settingtypes.txt b/settingtypes.txt
index 7f0d961..f581b89 100644
--- a/settingtypes.txt
+++ b/settingtypes.txt
@@ -1,2 +1,2 @@
 # output will be truncated after this point, with a short message.
-book_runner:max_book_length (maximum length of the book) int 100000 0 640000
+book_runner.max_book_length (maximum length of the book) int 100000 0 640000