diff --git a/dev-python/pynwb/ChangeLog b/dev-python/pynwb/ChangeLog
index 97a035d..9b3b19e 100644
--- a/dev-python/pynwb/ChangeLog
+++ b/dev-python/pynwb/ChangeLog
@@ -1,3 +1,6 @@
+  01 Oct 2021;  <chymera@gentoo.org> pynwb-2.0.0.ebuild:
+  dev-python/pynwb: requiring ROS3 support on hdf5
+
 *keyrings_alt-4.1.0 (24 Sep 2021)
 
   24 Sep 2021;  <chymera@gentoo.org> +keyrings_alt-4.1.0.ebuild, +metadata.xml:
diff --git a/dev-python/pynwb/pynwb-2.0.0.ebuild b/dev-python/pynwb/pynwb-2.0.0.ebuild
index ab461c6..ecfefa9 100644
--- a/dev-python/pynwb/pynwb-2.0.0.ebuild
+++ b/dev-python/pynwb/pynwb-2.0.0.ebuild
@@ -15,6 +15,7 @@ LICENSE="BSD"
 KEYWORDS="~amd64 ~x86"
 
 RDEPEND="
+	sci-libs/hdf5[ros3]
 	dev-python/hdmf[${PYTHON_USEDEP}]
 	dev-python/h5py[${PYTHON_USEDEP}]
 	dev-python/numpy[${PYTHON_USEDEP}]