diff --git a/changelog.md b/changelog.md
index c177f86..0b98535 100644
--- a/changelog.md
+++ b/changelog.md
@@ -3,3 +3,4 @@
 - removed static raw files for iphreeqc instead using urls to download latest versions
 - automated workflow for uploading wheels (pre-compilation) to pypi for new versions
 - documentation migrated to readthedocs
+- cemdata18 database added to database folder