diff --git a/abstar/version.py b/abstar/version.py
index c40e82e..796e9d2 100644
--- a/abstar/version.py
+++ b/abstar/version.py
@@ -2,4 +2,4 @@
 # 1) we don't load dependencies by storing it in __init__.py
 # 2) we can import it in setup.py for the same reason
 # 3) we can import it into your module module
-__version__ = "0.6.3"
+__version__ = "0.6.4"
diff --git a/requirements.txt b/requirements.txt
index b5dc446..d37d932 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-abutils>=0.2.9
+abutils>=0.4.14
 biopython == 1.78
 celery
 dask[complete]