diff --git a/ChemistryForYou2/changelog.txt b/ChemistryForYou2/changelog.txt
index b3e0119..3a6b51d 100644
--- a/ChemistryForYou2/changelog.txt
+++ b/ChemistryForYou2/changelog.txt
@@ -1,4 +1,9 @@
 ---------------------------------------------------------------------------------------------------
+Version: 2.0.4
+Date: 16.10.2025
+  Bug Fixes:
+    - Fix crash when bzsilicon is present but bzaluminum is not
+---------------------------------------------------------------------------------------------------
 Version: 2.0.3
 Date: 14.10.2025
   Bug Fixes:
diff --git a/ChemistryForYou2/info.json b/ChemistryForYou2/info.json
index 0898812..57a3dea 100644
--- a/ChemistryForYou2/info.json
+++ b/ChemistryForYou2/info.json
@@ -1,6 +1,6 @@
 {
   "name": "ChemistryForYou2",
-  "version": "2.0.3",
+  "version": "2.0.4",
   "factorio_version": "2.0",
   "title": "ChemistryForYou",
   "author": "Timeken, cackling fiend",