diff --git a/pyproject.toml b/pyproject.toml
index 1d9e9d000..c9c717ffe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,6 +32,7 @@ dependencies = [
     "tornado>=6.1",
     "matplotlib-inline>=0.1",
     'appnope;platform_system=="Darwin"',
+    "pyzmq>=17",
     "psutil",
     "nest_asyncio",
     "packaging",