diff --git a/requirements.txt b/requirements.txt
index e64267b9..077fe24f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,3 +7,7 @@
 # pin this to a dev branch that we have more control over especially
 # as more graphics stuff gets hashed out.
 -e git+https://github.com/pikers/pyqtgraph.git@piker_pin#egg=pyqtgraph
+
+
+# our async client for ``marketstore`` (the tsdb)
+-e git+https://github.com/pikers/anyio-marketstore.git@master#egg=anyio-marketstore