diff --git a/daliuge-engine/pip/requirements.txt b/daliuge-engine/pip/requirements.txt
index 6dd9ae859..427464cb6 100644
--- a/daliuge-engine/pip/requirements.txt
+++ b/daliuge-engine/pip/requirements.txt
@@ -1,4 +1,6 @@
 # The PIP requirements for daliuge - taken from setup.py
+aiostream
+asyncstdlib
 boto3
 bottle
 configobj
diff --git a/daliuge-engine/setup.py b/daliuge-engine/setup.py
index 94723e577..00a4db556 100644
--- a/daliuge-engine/setup.py
+++ b/daliuge-engine/setup.py
@@ -116,6 +116,8 @@ def run(self):
 # Keep alpha-sorted PLEASE!
 install_requires = [
     "wheel", # need to get wheel first...
+    "aiostream",
+    "asyncstdlib",
     "bottle",
     "configobj",
     "crc32c",