diff --git a/requirements.txt b/requirements.txt
index 5a610423e3cd6c340e835c44d1e5d00f09eff6b1..23dc58fde626c364d58edc0b6ac7d76f077412b7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 h5py>=2.9
 nibabel>=2.4
-numpy==1.*
+numpy>=1
 scipy>=0.18
-six==1.*
+six>=1
+dataclasses