diff --git a/binder/requirements.txt b/binder/requirements.txt
index 2a9a1f383f9a986edf0149ddef130d2d64f52739..769680194e5bcb939abb0b07185437c05ee581d6 100644
--- a/binder/requirements.txt
+++ b/binder/requirements.txt
@@ -1,2 +1,2 @@
-./dist/ebas_io-4.3.8-py3-none-any.whl
+./dist/ebas_io-4.3.9-py3-none-any.whl
 netCDF4
diff --git a/dist/ebas_io-4.3.8-py2-none-any.whl b/dist/ebas_io-4.3.9-py2-none-any.whl
similarity index 52%
rename from dist/ebas_io-4.3.8-py2-none-any.whl
rename to dist/ebas_io-4.3.9-py2-none-any.whl
index e7b62ea9ebdd0e820fb23512c480935b42095451..0be54f9fa17b3f43e9ffdc5951c3139991be8f2a 100644
Binary files a/dist/ebas_io-4.3.8-py2-none-any.whl and b/dist/ebas_io-4.3.9-py2-none-any.whl differ
diff --git a/dist/ebas_io-4.3.8-py3-none-any.whl b/dist/ebas_io-4.3.9-py3-none-any.whl
similarity index 52%
rename from dist/ebas_io-4.3.8-py3-none-any.whl
rename to dist/ebas_io-4.3.9-py3-none-any.whl
index 88317502cf254b2eb1ff155404e9f0de4c4b9cfa..417e54b5da56d2a52115f9fb1f1ffe12f3bfec7c 100644
Binary files a/dist/ebas_io-4.3.8-py3-none-any.whl and b/dist/ebas_io-4.3.9-py3-none-any.whl differ