diff --git a/setup.cfg b/setup.cfg
index a3bd76e..982feae 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -19,7 +19,7 @@ setup_requires = setuptools_scm
 install_requires =
     astropy>=5.0
     scipy
-    baseband-tasks
+    baseband-tasks[io]
     matplotlib
 
 [options.extras_require]