diff --git a/binder/requirements.txt b/binder/requirements.txt
index 0ff631591c2d0f3a2edd66843e1e785e13b18af7..815433953db7165bd71906f93dcd7602a092c6a3 100644
--- a/binder/requirements.txt
+++ b/binder/requirements.txt
@@ -1,2 +1,2 @@
-./dist/ebas_io-4.3.1-py3-none-any.whl
+./dist/ebas_io-4.3.4-py3-none-any.whl
 netCDF4
diff --git a/dist/ebas_io-4.3.1-py2-none-any.whl b/dist/ebas_io-4.3.1-py2-none-any.whl
deleted file mode 100644
index 91bf52cd40d457516b171c7fcc85a8de06fe43ab..0000000000000000000000000000000000000000
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diff --git a/dist/ebas_io-4.3.1-py3-none-any.whl b/dist/ebas_io-4.3.1-py3-none-any.whl
deleted file mode 100644
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diff --git a/dist/ebas_io-4.3.4-py2-none-any.whl b/dist/ebas_io-4.3.4-py2-none-any.whl
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diff --git a/dist/ebas_io-4.3.4-py3-none-any.whl b/dist/ebas_io-4.3.4-py3-none-any.whl
new file mode 100644
index 0000000000000000000000000000000000000000..ee69ef2a80b3e44dc4f892760cb88138c9c216e1
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