diff --git a/pyproject.toml b/pyproject.toml
index 957b6ae3fa..71f245a935 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ dependencies = [
     "pydantic>=2.3, <3",
     "scalecodec==1.2.11",
     "uvicorn",
-    "bittensor-drand>=1.0.0",
+    "bittensor-drand>=1.0.0,<2.0.0",
     "bittensor-wallet>=4.0.0,<5.0",
     "async-substrate-interface>=1.4.2"
 ]