diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d12445..8425758 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 2.1.6 (June 25, 2023)\n
+- fix: disable directory fsync on AIX and IBM i ("os400")
+
 ## 2.1.5 (February 12, 2023)
 
 - fix: publish config
diff --git a/packages/core/src/storage.js b/packages/core/src/storage.js
index c569cf7..d9638ad 100755
--- a/packages/core/src/storage.js
+++ b/packages/core/src/storage.js
@@ -67,7 +67,13 @@ storage.flushToStorage = function (options, callback) {
 
   // Windows can't fsync (FlushFileBuffers) directories. We can live with this as it cannot cause 100% dataloss
   // except in the very rare event of the first time database is loaded and a crash happens
-  if (flags === 'r' && (process.platform === 'win32' || process.platform === 'win64')) {
+  if (
+    flags === 'r' &&
+    (process.platform === 'win32' ||
+      process.platform === 'win64' ||
+      process.platform === 'aix' ||
+      process.platform === 'os400')
+  ) {
     return callback(null);
   }
 
diff --git a/version b/version
index cd57a8b..399088b 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-2.1.5
+2.1.6